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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a=[a=>12]; var_dump(undefined);
based on jGT24
Output for 7.2.0
Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/WosAe on line 2 Warning: Use of undefined constant undefined - assumed 'undefined' (this will throw an Error in a future version of PHP) in /in/WosAe on line 3 string(9) "undefined"
Output for 5.4.12 - 7.1.10
Notice: Use of undefined constant a - assumed 'a' in /in/WosAe on line 2 Notice: Use of undefined constant undefined - assumed 'undefined' in /in/WosAe on line 3 string(9) "undefined"
Output for 5.3.22 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/WosAe on line 2
Process exited with code 255.