3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array(0,null,3,null); foreach ($array as &$row) { if ($row == null) unset($row); } print_r($array );
Output for 5.0.0 - 5.6.25, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 0 [1] => [2] => 3 [3] => )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/ALIlD on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/ALIlD on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/ALIlD on line 4
Process exited with code 255.