我正在尝试通过启用持久数据库连接来提高volkszaehler.org实现的性能.黑客攻击包括Doctrine的Connection类以使PDO :: ATTR_PERSISTENT =>是的,我收到PDO错误一般错误：PDO :: ATTR_STATEMENT_CLASS不能用于持久性PDO实例“
有没有什么办法解决这一问题？
您可以将自己的PDO实例传递给Doctrine,自己设置持久连接：
$dbh = new PDO('MysqL:host=localhost;dbname=test',$user,$pass,array(
PDO::ATTR_PERSISTENT => true
));
$config = new \Doctrine\DBAL\Configuration();
$connectionParams = array(
'dbname' => 'mydb','user' => 'user','password' => 'secret','host' => 'localhost','pdo' => $dbh,);
$conn = \Doctrine\DBAL\DriverManager::getConnection($connectionParams,$config);
请务必了解与PDO使用持久连接的含义：What are the disadvantages of using persistent connection in PDO
