3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo 1 <=> 1; // 0 echo 1 <=> 2; // -1 echo 2 <=> 1; // 1 $array = [3,2,1]; usort($array, function($x, $y) { return $x <=> $y; }); var_dump($array);
based on eNcdK
Output for 7.0.0 - 7.2.0
0-11array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }
Output for 5.3.20 - 5.6.28
Parse error: syntax error, unexpected '>' in /in/J5JvR on line 3
Process exited with code 255.