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Direktori : /home/emergentqj/jugement/wp-content/plugins/backup-guard-platinum/com/lib/ |
Current File : /home/emergentqj/jugement/wp-content/plugins/backup-guard-platinum/com/lib/SGCharsetHandler.php |
<?php class SGCharsetHandler { private $utf8mb4Available = false; private $utf8mb4520Available = false; public function __construct() { $this->utf8mb4Available = $this->mysqlHasCapability('utf8mb4'); $this->utf8mb4520Available = $this->mysqlHasCapability('utf8mb4_520'); } public function replaceInvalidCharsets($query) { $search = array(); $replace = array(); //check for utf8mb4_520 support first if (!$this->utf8mb4520Available) { $search[] = 'COLLATE=utf8mb4_unicode_520_ci'; $replace[] = $this->utf8mb4Available?'COLLATE=utf8mb4_unicode_ci':'COLLATE=utf8_general_ci'; $search[] = 'COLLATE utf8mb4_unicode_520_ci'; $replace[] = $this->utf8mb4Available?'COLLATE utf8mb4_unicode_ci':'COLLATE utf8_general_ci'; } //then check for utf8mb4 support if (!$this->utf8mb4Available) { $search[] = 'COLLATE=utf8mb4_unicode_ci'; $replace[] = 'COLLATE=utf8_general_ci'; $search[] = 'COLLATE utf8mb4_unicode_ci'; $replace[] = 'COLLATE utf8_general_ci'; $search[] = 'CHARACTER SET utf8mb4'; $replace[] = 'CHARACTER SET utf8'; $search[] = 'CHARSET=utf8mb4'; $replace[] = 'CHARSET=utf8'; $search[] = 'character_set_client = utf8mb4'; $replace[] = 'character_set_client = utf8'; $search[] = 'SET NAMES utf8mb4'; $replace[] = 'SET NAMES utf8'; } if (count($search) && count($replace)) { $query = str_replace($search, $replace, $query); } return $query; } public function getMysqlClientInfo() { if (function_exists('mysqli_connect')) { if (version_compare(phpversion(), '5.5', '>=') || !function_exists('mysql_connect')) { return @mysqli_get_client_info(); } } return @mysql_get_client_info(); } public function mysqlHasCapability($cap) { if ($cap == 'utf8mb4') { if (version_compare(SG_MYSQL_VERSION, '5.5.3', '<')) { return false; } $clientVersion = $this->getMysqlClientInfo(); /* * libmysql has supported utf8mb4 since 5.5.3, same as the MySQL server. * mysqlnd has supported utf8mb4 since 5.0.9. */ if (false !== strpos($clientVersion, 'mysqlnd')) { $clientVersion = preg_replace('/^\D+([\d.]+).*/', '$1', $clientVersion); return version_compare($clientVersion, '5.0.9', '>='); } else { return version_compare($clientVersion, '5.5.3', '>='); } } else if ($cap == 'utf8mb4_520') { return version_compare(SG_MYSQL_VERSION, '5.6', '>='); } return false; } }