3v4l.org

run code in 300+ PHP versions simultaneously
<?php function hasort($arr) { $a = $b = array(); foreach($arr as $v => $k) $a[$k][] = $v; ksort($a); foreach($a as $v => $i) foreach($i as $k) $b[$k] = $v; return $b; } $a = array('a' => 10, 'z' => 10, 'c' => 10, 'b' => 11, 'd' => 10,'e'=>9); $a = hasort($a); print_r($a);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.32, 7.1.0 - 7.1.24, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [e] => 9 [a] => 10 [z] => 10 [c] => 10 [d] => 10 [b] => 11 )
preferences:
247.46 ms | 406 KiB | 418 Q