3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = json_decode('{ "key": "levels", "value": "[{role_id:1, access_level_id:3}, {role_id:2, access_level_id:1}, {role_id:3, access_level_id:2}]", "description": "" }', true); $x['value'] = json_decode(preg_replace('/(\w+)(?=:)/', '"$1"', $x['value']), true); print_r($x);

preferences:
24.71 ms | 406 KiB | 5 Q