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Warning: Undefined variable $pdo in /home/ss602333/ss602333.stars.ne.jp/public_html/create/cardgame/userRegistration.php on line 6

Fatal error: Uncaught Error: Call to a member function prepare() on null in /home/ss602333/ss602333.stars.ne.jp/public_html/create/cardgame/userRegistration.php:6 Stack trace: #0 {main} thrown in /home/ss602333/ss602333.stars.ne.jp/public_html/create/cardgame/userRegistration.php on line 6