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<?php const DB_FILE_CONTENT = <<<'JSON' { "users": { "sirCode": { "pass": "examplePass", "role": "admin", "name": "Sir Code", "uuid": "cwsUser-admin-5e73b921b7d2b" }, "dave": { "pass": "supersecretlol", "role": "god", "name": "David X. Random", "uuid": "cwsUser-admin-5e73b921b7d2c" } } } JSON; $db = json_decode(DB_FILE_CONTENT, true); $new = '{"sirCode":{"pass":"examplePass","role":"admin","name":"Sir Code","uuid":"cwsUser-admin-5e73b921b7d2b"},"sirCode2":{"pass":"examplePass","role":"admin","name":"Sir Code","uuid":"cwsUser-admin-5e73b921b7d2b"}}'; foreach (json_decode($new, true) as $name => $user) { if (!isset($db['users'][$name])) { $db['users'][$name] = $user; } } var_dump($db);

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