php - How to connect PDO-oci with codeigniter -


here database.php(application/config/database.php)'s code(i modify first half accords server configuration):

$db['default'] = array( 'dsn'   => 'oci:dbname = (description =                     (address_list =                       (address = (protocol = tcp)(host = server ip)(port =  server port))                     )                     (connect_data =                       (service_name = project)                     )                   )', 'hostname' => 'server ip', 'username' => 'exampg', 'password' => 'server pw', 'database' => 'project_exampg', 'dbdriver' => 'pdo');

when load database in controller($this->load->database()), meet:

sqlstate[hy000]: pdo_oci_handle_factory: ora-12560: tns:protocol adapter error

how solve problem?

i have test pdo-oci connection these codes follows(it can work):

$tns = "(description = (address_list =   (address = (protocol = tcp)(host = server ip)(port = server port)) ) (connect_data =   (service_name = project) ))"; $db_username = "exampg"; $db_password = "server pw"; try{     $db = new pdo("oci:dbname=".$tns,$db_username,$db_password); }catch(pdoexception $e){     echo ($e->getmessage()); }


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