3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function xx() { echo array_shift( $params = func_get_args() ); } xx( 'xxx', 'ccc' );
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/0eZRP on line 3 xxx
Output for 5.1.2 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/0eZRP on line 3 xxx
Output for 4.3.0 - 5.1.1
xxx