function conn($hostName,$Login,$Password,$dbName,$Port) //建立目标数据库连接{    $conn = &ADONewConnection('postgres8');    $conn->debug = false; //true时adodb将在页面显示debug信息    $conn->LogSQL(false); //true时adodb将建立adodb_sqllog表记录每次sql操作    $conn->Connect($hostName,$Login,$Password,$dbName,$Port);     //$conn->Connect("localhost","olebarowner","olebar",'hn_db');           $conn->SetFetchMode(ADODB_FETCH_ASSOC);    return $conn;}

PHP连接PGSql的方法