3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $original = array('foo', null, 'bar', false, 5); $data = $original; foreach ($data as $key => $value) { if ($value === null) { unset($data[$key]); } } print_r($data); $data = $original; $data = array_filter($data, function ($value) { return $value === null; }); print_r($data);
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Array ( [0] => foo [2] => bar [3] => [4] => 5 ) Array ( [1] => )
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/JvXvr on line 16
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 T_FUNCTION in /in/JvXvr on line 16
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/JvXvr on line 16
Process exited with code 255.