3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $value = 'abcABC123DEF' $value = preg_replace_callback('/([A-Z])/', '$1 ', $value); var_dump($value);
Output for 5.4.0 - 5.4.22
Parse error: syntax error, unexpected '$value' (T_VARIABLE) in /in/YqR1O on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_VARIABLE in /in/YqR1O on line 3
Process exited with code 255.