Zend框架由哪个数据库函数连接到数据库


Zend framwork which db function do connection to the database

哪个zend-db函数连接到数据库?

$select = new Zend_Db_Select(Zend_Db_Table::getDefaultAdapter());
$select->from(array("t" => "table1"), "*")
    ->from(array("t2" => "table2"), null)
    ->where("t.id>0")
    ->order("id");
$query = $select->query();
$lines = $query->fetchAll(Zend_Db::FETCH_OBJ);

query()

fetchAll()

在适配器方法Zend_Db_Adapter_Abstract:_connect中进行连接。Zend_Db_Select内置sql,其query方法调用adapters方法Zend_Db_Adapter_Abstract::query
因此在query 中进行连接