
跨版本PHP代码转换终极教程
wp_check_php_mysql_versions ( No parameters )
wp_check_php_mysql_versions: 这是一个检查当前版本的PHP和MySQL是否与WordPress兼容的函数。它可以用来确保WordPress网站运行在与WordPress兼容的PHP和MySQL版本上。
检查所需的PHP版本,以及MySQL扩展或数据库落入。
如果不符合要求,则拒绝。
function wp_check_php_mysql_versions() { global $required_php_version, $wp_version; $php_version = PHP_VERSION; if ( version_compare( $required_php_version, $php_version, '>' ) ) { $protocol = wp_get_server_protocol(); header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 ); header( 'Content-Type: text/html; charset=utf-8' ); printf( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.', $php_version, $wp_version, $required_php_version ); exit( 1 ); } if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' ) // This runs before default constants are defined, so we can't assume WP_CONTENT_DIR is set yet. && ( defined( 'WP_CONTENT_DIR' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) || ! file_exists( ABSPATH . 'wp-content/db.php' ) ) ) { require_once ABSPATH . WPINC . '/functions.php'; wp_load_translations_early(); $args = array( 'exit' => false, 'code' => 'mysql_not_found', ); wp_die( __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ), __( 'Requirements Not Met' ), $args ); exit( 1 ); } }