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<?php $database = 'v23456_1'; if ('' === trim($database) || 'usr' !== substr($database, 0, 3)) { throw new InvalidArgumentException(sprintf('The given user name "%s" is invalid.', $database)); }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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
Fatal error: Uncaught InvalidArgumentException: The given user name "v23456_1" is invalid. in /in/IUjRd:6 Stack trace: #0 {main} thrown in /in/IUjRd on line 6
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Uncaught exception 'InvalidArgumentException' with message 'The given user name "v23456_1" is invalid.' in /in/IUjRd:6 Stack trace: #0 {main} thrown in /in/IUjRd on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Class 'InvalidArgumentException' not found in /in/IUjRd on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_NEW in /in/IUjRd on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_NEW in /in/IUjRd on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/IUjRd on line 6
Process exited with code 255.

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