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run code in 150+ php & hhvm versions
Bugs & Features
<?php class A {} class B extends A {} class C extends B {} var_dump(is_subclass_of('C', 'A'));
Output for 5.0.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true)
Output for 4.3.0 - 5.0.2
bool(false)