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run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array("a1"=>x,"a2"=>e,"a3"=>z); ksort( $array ); foreach ( $array as $keys => $values ) { print "$keys = $values "; }
based on WHipE
Output for 7.2.0
Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /in/kqgll on line 2 Warning: Use of undefined constant e - assumed 'e' (this will throw an Error in a future version of PHP) in /in/kqgll on line 2 Warning: Use of undefined constant z - assumed 'z' (this will throw an Error in a future version of PHP) in /in/kqgll on line 2 a1 = x a2 = e a3 = z
Output for 5.3.20 - 7.1.10
Notice: Use of undefined constant x - assumed 'x' in /in/kqgll on line 2 Notice: Use of undefined constant e - assumed 'e' in /in/kqgll on line 2 Notice: Use of undefined constant z - assumed 'z' in /in/kqgll on line 2 a1 = x a2 = e a3 = z