Retro video games delivered to your door every month!
Click above to get retro games delivered to your door ever month!
interface_exists
OuSob Home Page
PrevNext

interface_exists

(PHP 5 >= 5.0.2)

interface_exists -- Checks if the interface has been defined

Description

bool interface_exists ( string interface_name [, bool autoload] )

Checks if the given interface has been defined.

Parameters

interface_name

The interface name

autoload

Wether to call __autoload or not by default

Return Values

Returns TRUE if the interface given by interface_name has been defined, FALSE otherwise.

Examples

Example 1. interface_exists() example

<?php
// Check the interface exists before trying to use it
if (interface_exists('MyInterface')) {
    class MyClass implements MyInterface
    {
        // Methods
    }
}

?>

See Also

class_exists()

PrevHomeNext
get_parent_classUpis_a