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class_implements

(PHP 5 >= 5.1.0, PHP 7)

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

Description

代码语言:javascript
复制
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

Version

Description

5.1.0

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

Examples

Example #1 class_implements() example

代码语言:javascript
复制
<?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:

代码语言:javascript
复制
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

class_parents →

代码语言:txt
复制
 ? 1997–2017 The PHP Documentation Group

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

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