PHP gets, examines the class name, the function name, the method name function method

This article mainly introduces the PHP to obtain, check class name, function name, method name function method, this article summarizes 7 functions and the use of the introduction, the need for friends can refer to the

1.function_exists ()-Return TRUE if the given function has been defined

2.is_callable ()-detects whether the parameter is a valid callable structure

3.class_exists ()-Check whether the class is defined

4.method_exists ()-Checks whether the class's method exists

__function__ function name (PHP 4.3.0 new). From PHP 5 This constant returns the name (case-sensitive) of the function when it is defined. This value is always lowercase in PHP 4.

The name of the __class__ class (PHP 4.3.0 new). From PHP 5 This constant returns the name of the class when it is defined (case-sensitive). This value is always lowercase in PHP 4.

The method name of the __method__ class (PHP 5.0.0 new). Returns the name (case-sensitive) of the method when it is defined.

Note: These constants are preceded by two underscores.

Get_class (class name);//Gets the class name of the class where the current statement is located

Get_class_methods (class name),//Gets all method names of class name classes, and composes an array

Get_class_vars (class name);//gets all the lighter names of class name classes and makes up an array