PHP Manual
Prev |  | Next

# is_subclass_of

(PHP 4 >= 4.0.0)

is_subclass_of -- Determines if an object belongs to a subclass of the specified class

## Description

``bool is_subclass_of` (object obj, string superclass)`

This function returns `TRUE` if the object `obj`, belongs to a class which is a subclass of `superclass`, `FALSE` otherwise.

See also get_class(), get_parent_class()

Prev | Home | Next
get_parent_class | Up | method_exists