3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $menu = array( array(1,3,'Wurm 1.1', 2, 10), array(2,6,'Vogel 2.1', 2, 30), array(3,0,'Tiger 1', 1, 10), array(4,6,'Hund 2.2', 2, 40), array(5,3,'Katze 1.2', 2, 11), array(6,0,'Pferd 2', 1, 20), array(7,1,'Baer 1.1.1', 3, 0), array(8,3,'Schwein 1.3', 2, 12), array(9,4,'Esel 2.2.1', 3, 0), ); // Algorithmus hier /* uasort($menu, function($a,$b) { return $a[1] == $b[1] ? ($a[4] < $b[4] ? -1 : 1) : ($a[1] < $b[1] ? -1 : 1); });*/ $cache = array(); foreach ($menu as $m) { if (!isset($result[$m[1]])) { $cache[$m[1]] = array(); } $cache[$m[1]][] = $m; } $iterator = sort(array_keys($cache)); print_r($iterator); //$result = m($menu, 0, array()); $target = array( array(3,0,'Tiger 1', 1, 10), array(1,3,'Wurm 1.1', 2, 10), array(7,1,'Baer 1.1.1', 3, 0), array(5,3,'Katze 1.2', 2, 11), array(8,3,'Schwein 1.3', 2, 12), array(6,0,'Pferd 2', 1, 20), array(2,6,'Vogel 2.1', 2, 30), array(4,6,'Hund 2.2', 2, 40), array(9,4,'Esel 2.2.1', 3, 0), ); var_dump($result == $target);
based on WXn5S
Output for 7.0.0 - 7.2.0
Notice: Only variables should be passed by reference in /in/gU0dS on line 32 1 Notice: Undefined variable: result in /in/gU0dS on line 52 bool(false)
Output for 5.3.18 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/gU0dS on line 32 1 Notice: Undefined variable: result in /in/gU0dS on line 52 bool(false)