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PHP method_exists

PHP original manual for method_exists [ show | php.net ]

method_exists

(PHP 4, PHP 5, PHP 7)

method_existsChecks if the class method exists

Description

bool method_exists ( mixed $object , string $method_name )

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

<?php
var_dump
(method_exists('Directory','read'));
?>

The above example will output:

bool(true)

See Also