3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php error_reporting(-1); ini_set('display_errors', 'On'); ini_set('html_errors', 'Off'); array_map('-1',array());
Output for 5.3.0 - 7.2.0
Warning: array_map() expects parameter 1 to be a valid callback, function '-1' not found or invalid function name in /in/veL0C on line 7
Output for 4.3.2 - 5.2.17
Warning: array_map(): The first argument, '-1', should be either NULL or a valid callback in /in/veL0C on line 7
Output for 4.3.0 - 4.3.1