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@ 2013-08-01T19:29:48Z

<?php
class A {}
class B extends A {}
class C extends B {}
var_dump(is_subclass_of('C', 'A'));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_subclass_of: documentation ( source)

preferences:dark modelive preview

42.17 ms | 402 KiB | 5 Q