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run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = new StdClass(); var_dump(array($x => 1));
Output for 4.3.9 - 7.1.7
Warning: Illegal offset type in /in/9GfSb on line 3 array(0) { }
Output for 4.3.0 - 4.3.8
array(0) { }