我正在开发一个Zend应用程序,我需要保留数据库对象的单个实例,并在当前实例以某种方式断开连接时重新连接.这是代码:
class Resource_PdoMysqL extends Zend_Application_Resource_ResourceAbstract
{
const KEY = 'PDO_MysqL';
private static function connect()
{
$connParams = array("host" => host,
"port" => 'port',
"username" => 'username',
"password" => 'password',
"dbname" => 'dbname');
$db = new Zend_Db_Adapter_Pdo_MysqL($connParams);
return $db;
}
public static function getConnection()
{
if (!Zend_Registry::isRegistered(self::KEY))
{
$db = self::connect();
Zend_Registry::set(self::KEY, $db);
}
return Zend_Registry::get(self::KEY);
}
public static function reconnect()
{
$db = self::connect();
Zend_Registry::set(self::KEY, $db);
}
public function init()
{
return self::getConnection();
}
}
Am using $db like this
$db = Resource_PdoMysqL::getConnection();
// <Here I need to check if the connection is open before proceeding>
$db->insert('table', $data);
解决方法:
根据Zend_Db_Adapter
documentation,您可能在调用适配器getConnection()方法后捕获异常.这是示例中的复制粘贴摘录:
try {
$db = Zend_Db::factory('Pdo_MysqL', $parameters);
$db->getConnection();
} catch (Zend_Db_Adapter_Exception $e) {
// perhaps a Failed login credential, or perhaps the RDBMS is not running
} catch (Zend_Exception $e) {
// perhaps factory() Failed to load the specified Adapter class
}
希望有所帮助,
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