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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump('stdClass', in_array(get_declared_classes()));
Output for 5.3.0 - 7.2.0
Warning: in_array() expects at least 2 parameters, 1 given in /in/J3i25 on line 3 string(8) "stdClass" NULL
Output for 4.3.0 - 5.2.17
Warning: Wrong parameter count for in_array() in /in/J3i25 on line 3 string(8) "stdClass" NULL