AlkantarClanX12
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<?php
/**
* File: Cache.php
*
* @package W3TC
*/
namespace W3TC;
/**
* W3 Cache class
*/
/**
* Class: Cache
*/
class Cache {
/**
* Returns cache engine instance
*
* @param string $engine Engine key code.
* @param array $config Configuration.
* @return W3_Cache_Base
*/
public static function instance( $engine, $config = array() ) {
static $instances = array();
// Common configuration data.
if ( ! isset( $config['blog_id'] ) ) {
$config['blog_id'] = Util_Environment::blog_id();
}
$instance_key = sprintf( '%s_%s', $engine, md5( serialize( $config ) ) );
if ( ! isset( $instances[ $instance_key ] ) ) {
switch ( $engine ) {
case 'apc':
if ( function_exists( 'apcu_store' ) ) {
$instances[ $instance_key ] = new Cache_Apcu( $config );
} else if ( function_exists( 'apc_store' ) ) {
$instances[ $instance_key ] = new Cache_Apc( $config );
}
break;
case 'eaccelerator':
$instances[ $instance_key ] = new Cache_Eaccelerator( $config );
break;
case 'file':
$instances[ $instance_key ] = new Cache_File( $config );
break;
case 'file_generic':
$instances[ $instance_key ] = new Cache_File_Generic( $config );
break;
case 'memcached':
if ( class_exists( '\Memcached' ) ) {
$instances[ $instance_key ] = new Cache_Memcached( $config );
} elseif ( class_exists( '\Memcache' ) ) {
$instances[ $instance_key ] = new Cache_Memcache( $config );
}
break;
case 'nginx_memcached':
$instances[ $instance_key ] = new Cache_Nginx_Memcached( $config );
break;
case 'redis':
$instances[ $instance_key ] = new Cache_Redis( $config );
break;
case 'wincache':
$instances[ $instance_key ] = new Cache_Wincache( $config );
break;
case 'xcache':
$instances[ $instance_key ] = new Cache_Xcache( $config );
break;
default:
trigger_error( 'Incorrect cache engine ' . esc_html( $engine ), E_USER_WARNING );
$instances[ $instance_key ] = new Cache_Base( $config );
break;
}
if ( ! isset( $instances[ $instance_key ] ) || ! $instances[ $instance_key ]->available() ) {
$instances[ $instance_key ] = new Cache_Base( $config );
}
}
return $instances[ $instance_key ];
}
/**
* Returns caching engine name.
*
* @param string $engine Engine key code.
* @param string $module Module.
*
* @return string
*/
public static function engine_name( $engine, $module = '' ) {
switch ( $engine ) {
case 'memcached':
if ( class_exists( 'Memcached' ) ) {
$engine_name = 'Memcached';
} else {
$engine_name = 'Memcache';
}
break;
case 'nginx_memcached':
$engine_name = 'Nginx + Memcached';
break;
case 'apc':
$engine_name = 'APC';
break;
case 'eaccelerator':
$engine_name = 'EAccelerator';
break;
case 'redis':
$engine_name = 'Redis';
break;
case 'xcache':
$engine_name = 'XCache';
break;
case 'wincache':
$engine_name = 'WinCache';
break;
case 'file':
if ( 'pgcache' === $module ) {
$engine_name = 'Disk: Basic';
} else {
$engine_name = 'Disk';
}
break;
case 'file_generic':
$engine_name = 'Disk: Enhanced';
break;
case 'ftp':
$engine_name = 'Self-hosted / file transfer protocol upload';
break;
case 's3':
$engine_name = 'Amazon Simple Storage Service (S3)';
break;
case 's3_compatible':
$engine_name = 'S3 compatible';
break;
case 'cf':
$engine_name = 'Amazon CloudFront';
break;
case 'google_drive':
$engine_name = 'Google Drive';
break;
case 'highwinds':
$engine_name = 'Highwinds';
break;
case 'cf2':
$engine_name = 'Amazon CloudFront';
break;
case 'cloudfront':
$engine_name = 'Amazon CloudFront';
break;
case 'rscf':
$engine_name = 'Rackspace Cloud Files';
break;
case 'azure':
$engine_name = 'Microsoft Azure Storage';
break;
case 'azuremi':
$engine_name = 'Microsoft Azure Storage (Managed Identity)';
break;
case 'edgecast':
$engine_name = 'Media Template ProCDN / EdgeCast';
break;
case 'att':
$engine_name = 'AT&T';
break;
case 'rackspace_cdn':
$engine_name = 'Rackspace';
break;
case 'stackpath2':
$engine_name = 'StackPath';
break;
case 'bunnycdn':
$engine_name = 'Bunny CDN';
break;
case '':
$engine_name = __( 'None', 'w3-total-cache' );
break;
default:
$engine_name = $engine;
break;
}
return $engine_name;
}
}