Learning PHP
Advanced PHP
PHP Function Reference
PHP Useful Resources
Selected Reading
© 2011 TutorialsPoint.COM
|
PHP Function interface_exists()
Syntax
interface_exists ( $interface_name [, $autoload] );
|
Definition and Usage
This function checks if the given interface has been defined.
Paramters
Parameter | Description |
interface_name | Required. The interface name |
autoload | Optional. Wether to call __autoload or not by default. |
Return Value
Returns TRUE if the interface given by interface_name has been defined, FALSE otherwise.
Example
Following is the usage of this function:
<?php
if (interface_exists('MyInterface')) {
class MyClass implements MyInterface
{
// Methods
}
}
?>
|
|
|
|