3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo check($ok=array()); function check(&$ok = array()) { return $ok; } ?>
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/tYqXG on line 3 Notice: Array to string conversion in /in/tYqXG on line 3 Array
Output for hhvm-3.10.0 - 3.12.0
Strict Warning: Only variables should be passed by reference in /in/tYqXG on line 3 Notice: Array to string conversion in /in/tYqXG on line 3 Array
Output for 5.4.0 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/tYqXG on line 3 Notice: Array to string conversion in /in/tYqXG on line 3 Array
Output for 5.1.2 - 5.3.29
Strict Standards: Only variables should be passed by reference in /in/tYqXG on line 3 Array
Output for 5.0.0 - 5.1.1
Array
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '=', expecting ')' in /in/tYqXG on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '=', expecting ')' in /in/tYqXG on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/tYqXG on line 6
Process exited with code 255.