Database connection variable

Hello all,

Can someone help me to find which variable holds the database connection to use it in mysqli queries?

Or do I need to create a new database connection using data from configuration.php file?

Have some scrirpts ready using mysqli, Smarty templates and Bootstrap, and I want to avoid big changes by using PDO.

eg in my Forum script I'm using:

$sql_forum = mysqli_query($db,"SELECT * FROM " . TABLE_PREFIX . "forums WHERE id=$forumid ORDER BY id ASC LIMIT 1");

Thank you

Finally I added a connection and I used my own variable.

require __DIR__ . '/init.php';
// Connect to Database
$db = mysqli_connect($db_host, $db_username, $db_password, $db_name);
if (mysqli_connect_errno())
{
   echo "Failed to connect to Database: " . mysqli_connect_error();
}

if these are for use in hooks, I wouldn't have thought you'd need to use your db details...

https://developers.whmcs.com/advanced/db-interaction/

if these are for use in hooks, I wouldn't have thought you'd need to use your db details...

 

https://developers.whmcs.com/advanced/db-interaction/

Thank you. No, I don't plan to use it in hooks. In simple pages like: https://www.cmsbulletin.com/whmcs/forum.php

PDO with transaction (and rollback) are something that I was using back to 1987 with Clipper 5 for Dos. The only that I remember now is the meaning

After 10 years that I came back to WHMCS coding, what I can say is that things became much better, but I'm missing the easy of use of vBulletin database manager. Just $db->query_read, $db->query_write etc etc and you can do anything in any place you want. Maybe vB is on EOL, but some things remain without competition.

Again thank you !