3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(strlen(null)); var_dump(strlen(0)); var_dump(strlen(1234)); var_dump(strlen(""));
based on 0X7c7
Output for 4.3.0 - 7.2.0
int(0) int(1) int(4) int(0)