php - how to use multiple database in opencart? -

i have 2 project, first 1 in yii , in open cart, need use both db in project, in yii site have complete, have issue in open cart please explain how use multiple database in open cart?

you can use multiple database this:

 // define database     $host = 'localhost';     $db1 = 'username1';     $pwd = 'pass';      $db2 = 'user2';     $pwd2 = 'pass';      $con1 = mysql_connect($host, $db1, $pwd) or die ('error connecting mysql');     $con2 = mysql_connect($host, $db2, $pwd2) or die ('2nd db error connecting mysql');      $db_name1 = '`mydatabase`';     mysql_select_db($db_name, $con1);      $db_name2 = '`mydatabase2`';     mysql_select_db($db_name2, $con2); 

this database actions:

    $result = mysql_query("select * ......", $con1) or die(mysql_error());      $result = mysql_query("select * ......", $con2) or die(mysql_error());