* [\_\_autoload](https://www.php.net/manual/en/function.autoload.php)—嘗試加載未定義的類 * [call\_user\_method\_array](https://www.php.net/manual/en/function.call-user-method-array.php)—調用帶有參數數組的用戶方法 * [call\_user\_method](https://www.php.net/manual/en/function.call-user-method.php)—在特定對象上調用用戶方法 * [class\_alias-](https://www.php.net/manual/en/function.class-alias.php)為類創建別名 * [class\_exists](https://www.php.net/manual/en/function.class-exists.php)—檢查是否已定義類 * [get\_drawn\_class](https://www.php.net/manual/en/function.get-called-class.php)—“最新靜態綁定”類名稱 * [get\_class\_methods](https://www.php.net/manual/en/function.get-class-methods.php)—獲取類方法的名稱 * [get\_class\_vars](https://www.php.net/manual/en/function.get-class-vars.php)—獲取類的默認屬性 * [get\_class](https://www.php.net/manual/en/function.get-class.php)—返回對象的類的名稱 * [get\_declared\_classes](https://www.php.net/manual/en/function.get-declared-classes.php)—返回具有已定義類名稱的數組 * [get\_declared\_interfaces](https://www.php.net/manual/en/function.get-declared-interfaces.php)—返回所有已聲明接口的數組 * [get\_declared\_traits](https://www.php.net/manual/en/function.get-declared-traits.php)—返回所有已聲明特征的數組 * [get\_object\_vars](https://www.php.net/manual/en/function.get-object-vars.php)—獲取給定對象的屬性 * [get\_parent\_class](https://www.php.net/manual/en/function.get-parent-class.php)—檢索對象或類的父類名稱 * [interface\_exists](https://www.php.net/manual/en/function.interface-exists.php)—檢查是否已定義接口 * [is\_a](https://www.php.net/manual/en/function.is-a.php)—檢查對象是否屬于此類或作為其父級之一具有此類 * [is\_subclass\_of](https://www.php.net/manual/en/function.is-subclass-of.php)—檢查對象是否具有此類作為其父級之一或實現它 * [method\_exists](https://www.php.net/manual/en/function.method-exists.php)—檢查類方法是否存在 * [property\_exists](https://www.php.net/manual/en/function.property-exists.php)—檢查對象或類是否具有屬性 * [trait\_exists](https://www.php.net/manual/en/function.trait-exists.php)—檢查特征是否存在