array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'en', ), 'this' => array ( 0 => 'function.class-parents.php', 1 => 'class_parents', ), 'up' => array ( 0 => 'ref.spl.php', 1 => 'SPL Functions', ), 'prev' => array ( 0 => 'function.class-implements.php', 1 => 'class_implements', ), 'next' => array ( 0 => 'function.class-uses.php', 1 => 'class_uses', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/spl/functions/class-parents.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 5, PHP 7, PHP 8)
class_parents — Return the parent classes of the given class
This function returns an array with the name of the parent classes of
the given object_or_class
.
object_or_class
An object (class instance) or a string (class name).
autoload
Whether to autoload if not already loaded.
An array on success, or false
when the given class doesn't exist.
Example #1 class_parents() example
<?php
class foo { }
class bar extends foo {}
print_r(class_parents(new bar));
// you may also specify the parameter as a string
print_r(class_parents('bar'));
spl_autoload_register();
// use autoloading to load the 'not_loaded' class
print_r(class_parents('not_loaded', true));
?>
The above example will output something similar to:
Array ( [foo] => foo ) Array ( [foo] => foo ) Array ( [parent_of_not_loaded] => parent_of_not_loaded )
Note: To check that an object extends a class,
instanceof
or the is_a() function should be used instead.
instanceof