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run code in 500+ PHP versions simultaneously
<?php $str = '{ "1": { "name": "test", "followup": { "1": { "id": "98", "followup": { "1": { "id": "93", "followup": { "1": { "id": "174" } } } } } } } }'; $ids = array(); $data = json_decode($str, true); array_walk_recursive($data, function($v, $k) use (&$ids) { if ($k === 'id') { $ids[] = $v; } }); var_dump($ids);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(3) { [0]=> string(2) "98" [1]=> string(2) "93" [2]=> string(3) "174" }
preferences:
107.62 ms | 1952 KiB | 4 Q