The class_implements Function

The class_implements function returns an array of interface names that are implemented by the specified class or interface. The first parameter takes an object or class name as a string, and the second optional parameter determines whether autoloading should be used.

Syntax

class_implements(
	object|string $class,
	[bool $autoload = true]
): array|false

Example

Let's get interfaces for the built-in Exception class:

<?php
	$res = class_implements('Exception');
	print_r($res);
?>

Code execution result:

['Throwable']

Example

Let's create a custom interface and class, then check the implemented interfaces:

<?php
	interface MyInterface {}
	class MyClass implements MyInterface {}
	
	$res = class_implements('MyClass');
	print_r($res);
?>

Code execution result:

['MyInterface']

Example

Let's check interfaces for the interface itself:

<?php
	interface ParentInterface {}
	interface ChildInterface extends ParentInterface {}
	
	$res = class_implements('ChildInterface');
	print_r($res);
?>

Code execution result:

['ParentInterface']

The class_implements Function

Syntax

Example

Example

Example

See Also