3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = [0,1,2,3,4,5,6]; $count = count($a); for($i=0;$i<$count;$i++){ echo 's ' . $i.PHP_EOL; if ($a[$i]==3) { unset($a[$i]); $count--; $i--; } echo 'e ' . $i.PHP_EOL; }
based on n0EvW
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
s 0 e 0 s 1 e 1 s 2 e 2 s 3 e 2 s 3 Notice: Undefined offset: 3 in /in/3Gmnr on line 6 e 3 s 4 e 4 s 5 e 5
Output for hhvm-3.10.0 - 3.12.0
s 0 e 0 s 1 e 1 s 2 e 2 s 3 e 2 s 3 Notice: Undefined index: 3 in /in/3Gmnr on line 6 e 3 s 4 e 4 s 5 e 5
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/3Gmnr on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/3Gmnr on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/3Gmnr on line 2
Process exited with code 255.