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$row[1] : null; } else { return null; } } /** * Gets the MySQL database version number * * @param bool $full True: Gets the full version * False: Gets only the numeric portion i.e. 5.5.6 or 10.1.2 (for MariaDB) * * @return false|string 0 on failure, version number on success */ public static function getVersion($full = false) { global $wpdb; if ($full) { $version = self::getVariable('version'); } else { $version = preg_replace('/[^0-9.].*/', '', self::getVariable('version')); } //Fall-back for servers that have restricted SQL for SHOW statement if (empty($version)) { $version = $wpdb->db_version(); } return empty($version) ? 0 : $version; } /** * Try to return the mysqldump path on Windows servers * * @return boolean|string */ public static function getWindowsMySqlDumpRealPath() { if(function_exists('php_ini_loaded_file')) { $get_php_ini_path = php_ini_loaded_file(); if(file_exists($get_php_ini_path)) { $search = array( dirname(dirname($get_php_ini_path)).'/mysql/bin/mysqldump.exe', dirname(dirname(dirname($get_php_ini_path))).'/mysql/bin/mysqldump.exe', dirname(dirname($get_php_ini_path)).'/mysql/bin/mysqldump', dirname(dirname(dirname($get_php_ini_path))).'/mysql/bin/mysqldump', ); foreach($search as $mysqldump) { if(file_exists($mysqldump)) { return str_replace("\\","/",$mysqldump); } } } } unset($search); unset($get_php_ini_path); return false; } /** * Returns the mysqldump path if the server is enabled to execute it otherwise false * * @return boolean|string */ public static function getMySqlDumpPath() { //Is shell_exec possible if (!DUP_Util::hasShellExec()) { return false; } $custom_mysqldump_path = DUP_Settings::Get('package_mysqldump_path'); $custom_mysqldump_path = (strlen($custom_mysqldump_path)) ? $custom_mysqldump_path : ''; //Common Windows Paths if (DUP_Util::isWindows()) { $paths = array( $custom_mysqldump_path, self::getWindowsMySqlDumpRealPath(), 'C:/xampp/mysql/bin/mysqldump.exe', 'C:/Program Files/xampp/mysql/bin/mysqldump', 'C:/Program Files/MySQL/MySQL Server 6.0/bin/mysqldump', 'C:/Program Files/MySQL/MySQL Server 5.5/bin/mysqldump', 'C:/Program Files/MySQL/MySQL Server 5.4/bin/mysqldump' ); //Common Linux Paths } else { $path1 = ''; $path2 = ''; $mysqldump = `which mysqldump`; if (DUP_Util::isExecutable($mysqldump)) { $path1 = (!empty($mysqldump)) ? $mysqldump : ''; } $mysqldump = dirname(`which mysql`)."/mysqldump"; if (DUP_Util::isExecutable($mysqldump)) { $path2 = (!empty($mysqldump)) ? $mysqldump : ''; } $paths = array( $custom_mysqldump_path, $path1, $path2, '/usr/local/bin/mysqldump', '/usr/local/mysql/bin/mysqldump', '/usr/mysql/bin/mysqldump', '/usr/bin/mysqldump', '/opt/local/lib/mysql6/bin/mysqldump', '/opt/local/lib/mysql5/bin/mysqldump' ); } //Try to find a path that works. With open_basedir enabled, the file_exists may not work on some systems //So we fallback and try to use exec as a last resort $exec_available = function_exists('exec'); foreach ($paths as $path) { if(@file_exists($path)) { if (DUP_Util::isExecutable($path)) { return $path; } } elseif ($exec_available) { $out = array(); $rc = -1; $cmd = $path . ' --help'; @exec($cmd, $out, $rc); if ($rc === 0) { return $path; } } } return false; } /** * Returns an escaped SQL string * * @param string $sql The SQL to escape * @param bool $removePlaceholderEscape Patch for how the default WP function works. * * @return boolean|string * @also see: https://make.wordpress.org/core/2017/10/31/changed-behaviour-of-esc_sql-in-wordpress-4-8-3/ */ public static function escSQL($sql, $removePlaceholderEscape = false) { global $wpdb; $removePlaceholderEscape = $removePlaceholderEscape && self::$remove_placeholder_escape_exists; if ($removePlaceholderEscape) { return $wpdb->remove_placeholder_escape(@esc_sql($sql)); } else { return @esc_sql($sql); } } } DUP_DB::init();