3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo preg_replace('/[^a-z]/', '', strtolower('von reichhausen d'alfonso'));
Output for 5.4.0 - 5.4.15
Parse error: syntax error, unexpected 'alfonso' (T_STRING) in /in/IiXnX on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.25
Parse error: syntax error, unexpected T_STRING in /in/IiXnX on line 2
Process exited with code 255.