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Warning: mysql_connect(): Access denied for user 'root'@'localhost' (using password: YES) in /var/www/html/include/php_script/sql/Mysql_class.php on line 31

Warning: mysql_connect(): Access denied for user 'root'@'localhost' (using password: YES) in /var/www/html/include/php_script/sql/Mysql_class.php on line 31
 
Fatal error: Call to a member function ExecSQL() on a non-object in /var/www/html/english/01_product/01_list.php on line 27