array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'de', ), 'this' => array ( 0 => 'function.class-implements.php', 1 => 'class_implements', 2 => 'Return the interfaces which are implemented by the given class or interface', ), 'up' => array ( 0 => 'ref.spl.php', 1 => 'SPL Funktionen', ), 'prev' => array ( 0 => 'ref.spl.php', 1 => 'SPL Funktionen', ), 'next' => array ( 0 => 'function.class-parents.php', 1 => 'class_parents', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/spl/functions/class-implements.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

class_implements

(PHP 5, PHP 7, PHP 8)

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

Beschreibung

class_implements(object|string $object_or_class, bool $autoload = true): array|false

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

Parameter-Liste

object_or_class

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

autoload

Whether to autoload if not already loaded.

Rückgabewerte

An array on success, or false when the given class doesn't exist.

Beispiele

Beispiel #1 class_implements() example

<?php

interface foo { }
class bar implements foo {}

print_r(class_implements(new bar));

// you may also specify the parameter as a string
print_r(class_implements('bar'));

spl_autoload_register();

// use autoloading to load the 'not_loaded' class
print_r(class_implements('not_loaded', true));

?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

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

Anmerkungen

Hinweis: To check that an object implements an interface, instanceof or the is_a() function should be used instead.

Siehe auch