3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo strlen('php'); $a = array('ab','c'); echo strlen($a);
Output for 5.3.0 - 7.2.0
3 Warning: strlen() expects parameter 1 to be string, array given in /in/BCVvA on line 4
Output for 4.3.0 - 5.2.17
3 Notice: Array to string conversion in /in/BCVvA on line 4 5