在线文档教程
PHP
SPL

class_implements

class_implements

(PHP 5 >= 5.1.0, PHP 7)

class_implements — Return the interfaces which are implemented by the given class or interface

Description

array class_implements ( mixed $class [, bool $autoload = true ] )

This function returns an array with the names of the interfaces that the given class and its parents implement.

Parameters

class

An object (class instance) or a string (class or interface name).

autoload

Whether to allow this function to load the class automatically through the __autoload() magic method.

Return Values

An array on success, or FALSE on error.

Changelog

VersionDescription
5.1.0Added the option to pass the class parameter as a string. Added the autoload parameter.

Examples

Example #1 class_implements() example

<?php interface foo { } class bar implements foo {} print_r(class_implements(new bar) // since PHP 5.1.0 you may also specify the parameter as a string print_r(class_implements('bar') function __autoload($class_name) {    require_once $class_name . '.php'; } // use __autoload to load the 'not_loaded' class print_r(class_implements('not_loaded', true) ?>

The above example will output something similar to:

Array ( [foo] => foo ) Array ( [interface_of_not_loaded] => interface_of_not_loaded )

See Also

  • class_parents() - Return the parent classes of the given class

  • get_declared_interfaces() - Returns an array of all declared interfaces

← SPL Functions

class_parents →

© 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

https://secure.php.net/manual/en/function.class-implements.php