3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 5; $my_string = 'SAFDSADSADsddasdsDASSADDsads'; $my_str = strtolower($string); echo $my_str;
based on M3pgH
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: string in /in/ssfbX on line 4
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: string in /in/ssfbX on line 4