3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 'water' => [0, 1, 2, 3, 4, 5], 'apple' => [1, 5, 3, 4, 0, 0], 'beer' => [0, 0, 0, 0, 0, 0] ]; $arrWeight = array_map(function($value) { return is_array($value) ? array_sum($value) : 0; }, $arr); arsort($arrWeight); $arrAllowedKeys = array_slice($arrWeight, 0, 2, true); $arr = array_intersect_key($arr, $arrAllowedKeys); var_export($arr);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( 'water' => array ( 0 => 0, 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, ), 'apple' => array ( 0 => 1, 1 => 5, 2 => 3, 3 => 4, 4 => 0, 5 => 0, ), )
preferences:
146.02 ms | 407 KiB | 5 Q