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class_parents

(PHP 5)

class_parents --  Return the parent classes of the given class

说明

array class_parents ( mixed class [, bool autoload] )

This function returns an array with the name of the parent classes of the given class.

参数

class

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

autoload

Whether to allow this function to load the class automatically through the __autoload magic method. Defaults to TRUE.

返回值

Returns an array or FALSE on error.

更新日志

版本说明
5.1.0 Added the option to pass the class parameter as a string. Added the autoload parameter.

范例

例 1. class_parents() example

<?php

class foo { }
class bar extends foo {}

print_r(class_parents(new bar));

// since PHP 5.1.0 you may also specify the parameter as a string
print_r(class_parents('bar'));


function __autoload($class_name) {
   require_once $class_name . '.php';
}

// use __autoload to load the 'not_loaded' class
print_r(class_parents('not_loaded', true));
?>

上例的输出类似于：

Array
(
    [foo] => foo
)

Array
(
    [parent_of_not_loaded] => parent_of_not_loaded
)

参见

class_implements()



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