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run code in 300+ PHP versions simultaneously
<?php $object = json_decode('{"200": true}'); $data = get_object_vars($object); $data['200'] = false; echo json_encode($data, JSON_PRETTY_PRINT); ?>
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.20, 7.1.5 - 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
{ "200": false }
Output for 7.0.0 - 7.0.9, 7.1.0
{ "200": true, "200": false }

preferences:
226.78 ms | 401 KiB | 268 Q