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run code in 200+ php & hhvm versions
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<?php function callbackTest($param){ var_dump($param); } call_user_func("callbackTest", array(1,2,3,4,5, new stdClass()));
based on mXMRN
Output for 5.0.0 - 7.2.0
array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) [5]=> object(stdClass)#1 (0) { } }
Output for 4.3.0 - 4.4.9
array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) [5]=> object(stdClass)(0) { } }