<?php class A {} class B extends A {} $b = new B(); $a = new A(); var_dump(get_class($b) == 'A'); var_dump(get_class($a) == 'A'); var_dump(is_a($b, 'A') && !is_subclass_of($b, 'A')); var_dump(is_a($a, 'A') && !is_subclass_of($a, 'A'));
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