Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /var/www/html/QuickBooks/Driver/Sql/Mysql.php:289 Stack trace: #0 /var/www/html/QuickBooks/Driver/Sql/Mysql.php(206): QuickBooks_Driver_Sql_Mysql->_connect('localhost', 3306, 'root', 'root', 'quickbooks_serv...', true, 0) #1 /var/www/html/QuickBooks/Driver/Factory.php(97): QuickBooks_Driver_Sql_Mysql->__construct('mysql://root:ro...', Array) #2 /var/www/html/QuickBooks/Utilities.php(232): QuickBooks_Driver_Factory::create('mysql://root:ro...', Array, Array, 1) #3 /var/www/html/QuickBooks/Utilities.php(628): QuickBooks_Utilities::driverFactory('mysql://root:ro...', Array) #4 /var/www/html/docs/web_connector/example_web_connector_minimal.php(58): QuickBooks_Utilities::initialized('mysql://root:ro...') #5 {main} thrown in /var/www/html/QuickBooks/Driver/Sql/Mysql.php on line 289