PHP functions: method_exists and function_exists_php Tutorials

Method_exists

Check if the method of the class exists

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Checks if the method of the class exists in the specified object

Parameters:

Object: Example or class name

Method_name: Method Name

return value:

Returns True if the method referred to by method_name is defined in the object class referred to by object, otherwise false is returned.

Comments:

If this class is not a known class, using this function uses any registered autoloader.

Function_exists

Returns true if the provided method is already defined.

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Check the list of defined methods, including the built-in (internal PHP) and user-defined.

Parameters:

Method name, String type.

return value:

Returns True if the method name exists and is a method, otherwise false is returned.

Note

This function would return FALSE for constructs, such as include_once and Echo.

http://www.bkjia.com/PHPjc/440152.html www.bkjia.com true http://www.bkjia.com/PHPjc/440152.html techarticle Method_exists checks whether a method of the class exists bool (,) checks whether the method of the class exists in the specified object in the argument: object: an example of an instance or a class name Method_name: Method name return value ...

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