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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(1,2,3,4,5,6,7,8,9,10,'a','b','c','d','e','f','g','h','i','j'); for($i=0;$i<count($arr);$i+=2){ if($i>0){ $arr[$i]=$tmp2; } $tmp = $arr[$i+10]; $tmp2 = $arr[$i+1]; $arr[$i+1]=$tmp; } for($i=0;$i<count($arr);$i++){ echo($arr[$i]." "); } ?>
Output for 5.3.0 - 7.1.0
Notice: Undefined offset: 20 in /in/gAChv on line 8 Notice: Undefined offset: 22 in /in/gAChv on line 8 Notice: Undefined offset: 24 in /in/gAChv on line 8 Notice: Undefined offset: 26 in /in/gAChv on line 8 Notice: Undefined offset: 28 in /in/gAChv on line 8 1 a 2 c 4 e 6 g 8 i 10 b d f h
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 20 in /in/gAChv on line 8 Notice: Undefined offset: 22 in /in/gAChv on line 8 Notice: Undefined offset: 24 in /in/gAChv on line 8 Notice: Undefined offset: 26 in /in/gAChv on line 8 Notice: Undefined offset: 28 in /in/gAChv on line 8 1 a 2 c 4 e 6 g 8 i 10 b d f h