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Categories and Object Functions Library: is_subclass_of

Source: Internet
Author: User
Keywords is_subclass_of php Chinese function Manual category and object function library
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Is_subclass_of

(PHP4 >= 4.0b4)

Is_subclass_of---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; To determine whether an object belongs to a subcategory of a category

Syntax: bool Is_subclass_of (Object obj, string superclass)

Description:

This function returns true if Object obj is a subcategory of superclass, otherwise returns false.

Reference: Get_class () Get_parent_class ()

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