3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function getArray() { $temp =[1, 2, 3]; return $temp; //return [1, 2, 3]; } function squareArray(array &$a) { foreach ($a as &$v) { $v *= 2; } } // Generates a warning in PHP 7. $tempA = getArray(); print_r(squareArray((getArray())));
based on 0N2u5
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/FRKv2 on line 16
Output for 5.4.10 - 5.6.28
Output for 5.3.20 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/FRKv2 on line 3
Process exited with code 255.