3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function getArray($temp) { return $temp; //return [1, 2, 3]; } function squareArray(array &$a) { foreach ($a as &$v) { $v *= 2; } } $temp = [1, 2, 3]; // Generates a warning in PHP 7. $tempA = getArray($temp); print_r(squareArray((getArray($temp))));
based on FRKv2
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/RkpRh on line 17
Output for 5.4.10 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/RkpRh on line 17
Output for 5.3.20 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/RkpRh on line 14
Process exited with code 255.