method_exists

(PHP 4, PHP 5, PHP 7)

method_existsChecks if the class method exists


Description

method_exists ( string|object $object , string $method_name ) : bool

Checks if the class method exists in the given object.


Parameters

object
An object instance or a class name
method_name
The method name


Return Values

Returns TRUE if the method given by method_name has been defined for the given object, FALSE otherwise.


Notes

Note:

Using this function will use any registered autoloaders if the class is not already known.

Examples

Example #1 method_exists() example

<?php$directory = new Directory('.');var_dump(method_exists($directory,'read'));?>

The above example will output:


bool(true)

Example #2 Static method_exists() example

<?phpvar_dump(method_exists('Directory','read'));?>

The above example will output:


bool(true)

See Also