Online PHP editor | refs for LTa56

<?php $str = '{ "capacity_test": { "date": "2017-03-01", "status": "done", "PROPERTIES": { "fail": { "capacity_test": { "date": "2017-03-02", "status": "done", "PROPERTIES": { "boolean": false } }, "def": [ { "drop_test": { "Properties": { "date": "2017-03-05", "status": "done" } }, "waves_test": { "date": "2018-03-06", "status": "done" } }, { "drop_test": { "Properties": null }, "waves_test": { "date": "2018-03-06", "status": "done" } }, { "drop_test": { "Properties": null }, "waves_test": { "date": "2018-03-06", "status": "" } } ] }, "final_test": { "Properties": null } } } }'; $array = json_decode($str, true); // Convert JSON string to array $hasEmptyStatus = false; try { array_walk_recursive($array, function($item, $key) { if ($key == "status" && $item == "") { throw new Exception; } }); } catch(Exception $e) { $hasEmptyStatus = true; } var_dump($hasEmptyStatus);