3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $test = 'YO_{ YO_{ YO_{ YO_{ McDonalds. } } } }';; $test = preg_replace_callback($p = '/YO_\{(.*)\}/s', $f = function($matches) use (&$f, &$p) { return preg_match($p, $matches[1]) ?trim(preg_replace_callback($p, $f, $matches[1])) :$matches[1]; }, $test); echo $test;
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
McDonalds.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/X0Xeh on line 13
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/X0Xeh on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/X0Xeh on line 13
Process exited with code 255.