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---- | -------------------- | ----- | ---- could not find driver
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Fatal error: Uncaught Error: Call to a member function rollBack() on null in /var/www/html/php7cookbook/source/chapter05/chap_05_pdo_transactions.php:47 Stack trace: #0 {main} thrown in /var/www/html/php7cookbook/source/chapter05/chap_05_pdo_transactions.php on line 47