3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo($n) { return $n * 3; } $y = foo(5); //$z; // 'declaring' undefined variable w/o error message in PHP // assign absolute value of $y to $z {if ($y > 0) $z = $y; else $z = -$y; } echo $z;
based on rFPOO
Output for 4.3.0 - 7.2.0
15