{ "title": "UnexpectedValueException", "type": "UnexpectedValueException", "code": 500, "message": "$keyOrKeyArray must be an instance of a FirebaseJWTKey key or an array of FirebaseJWTKey keys", "File": "E:varwwwhtmlprojectspansadminvendorfirebasephp-jwtsrcJWT.php", "OK": 416,
You can use the following sample code -
If you run above then you will get the following response -
So just select these codes from above as per your requirement.