How to get database details is views in opencart

问题

I am writing query in view tpl but i don't know how to get database details and execute that query in views in opencart.Here is my code

$query=mysql_query("select $prefixorder from opencart ");

回答1:

why bothering your self with writing queries using native functions, open cart provides some stuff for you

• First, read this article, it's great and helped me a lot Here
• You can now execute the query through
  $result = $this->db->query("write your query here");
  You can get the number of returned rows through $result->num_rows, you can access the first row directly through $result->row which is an associative array that contains key/value pairs of the first row only, finally you can access all rows through $result->rows which is an array of associative arrays

来源：https://stackoverflow.com/questions/28468284/how-to-get-database-details-is-views-in-opencart