3v4l.org

run code in 300+ PHP versions simultaneously
<?php function coolPluck($array, $allowed) { $output = array(); foreach($allowed as $keyToFind) { foreach($array as $k => $v) { if($k === $keyToFind) { $output[$keyToFind] = $v; } if(is_array($v)) { $results = coolPluck($v, $allowed); if (isset($results[$keyToFind])) { if (!isset($output[$keyToFind])) { $output[$keyToFind] = $results[$keyToFind]; } else { if (is_array($output[$keyToFind])) { $output[$keyToFind] = array_merge(array($output[$keyToFind]), $results[$keyToFind]); } else { $output[$keyToFind] = array_merge((array)$output[$keyToFind], (array)$results[$keyToFind]); } } } } } } return $output; } $testArray = array( 'test' => array( 'percy' => array( 'percy' => array('percy' => 'anderson') ), 'mitch' => array( 'mitchell', 'anderson' ) ) ); var_dump(coolPluck($testArray, array('percy', 'mitch')));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_merge(): Argument #2 must be of type array, string given in /in/eimuj:23 Stack trace: #0 /in/eimuj(23): array_merge(Array, 'anderson') #1 /in/eimuj(14): coolPluck(Array, Array) #2 /in/eimuj(14): coolPluck(Array, Array) #3 /in/eimuj(52): coolPluck(Array, Array) #4 {main} thrown in /in/eimuj on line 23
Process exited with code 255.
Output for 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_merge(): Expected parameter 2 to be an array, string given in /in/eimuj on line 23 Warning: array_merge(): Expected parameter 2 to be an array, string given in /in/eimuj on line 23 Warning: array_merge(): Expected parameter 2 to be an array, string given in /in/eimuj on line 23 Warning: array_merge(): Expected parameter 2 to be an array, string given in /in/eimuj on line 23 array(2) { ["percy"]=> array(1) { ["percy"]=> array(1) { ["percy"]=> string(8) "anderson" } } ["mitch"]=> array(2) { [0]=> string(8) "mitchell" [1]=> string(8) "anderson" } }
Output for 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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33
Warning: array_merge(): Argument #2 is not an array in /in/eimuj on line 23 Warning: array_merge(): Argument #2 is not an array in /in/eimuj on line 23 Warning: array_merge(): Argument #2 is not an array in /in/eimuj on line 23 Warning: array_merge(): Argument #2 is not an array in /in/eimuj on line 23 array(2) { ["percy"]=> array(1) { ["percy"]=> array(1) { ["percy"]=> string(8) "anderson" } } ["mitch"]=> array(2) { [0]=> string(8) "mitchell" [1]=> string(8) "anderson" } }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
array(2) { ["percy"]=> array(3) { [0]=> array(1) { ["percy"]=> array(1) { ["percy"]=> string(8) "anderson" } } [1]=> array(1) { ["percy"]=> string(8) "anderson" } [2]=> string(8) "anderson" } ["mitch"]=> array(2) { [0]=> string(8) "mitchell" [1]=> string(8) "anderson" } }
preferences:
236.52 ms | 402 KiB | 352 Q