3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $v = ['one','two','three']; array_walk($v, function($value) { $value = "-$value-"; }); print_r($v);
based on HoRgM
Output for 5.4.0 - 7.3.0rc4
Array ( [0] => one [1] => two [2] => three )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/9nRJa on line 3
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/9nRJa on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9nRJa on line 3
Process exited with code 255.