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<?php $pdo = 'PDO'; $stmt = 'PDOStatement'; var_dump($pdo); var_dump($stmt); $pdo, $stmt = null; var_dump($pdo); var_dump($stmt);
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
Parse error: syntax error, unexpected ',' in /in/BRfqZ on line 6
Process exited with code 255.

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