Speeding up getting data MYSQL (inplanting) - php

Question

I'm a learning programmer and I'm trying to learn PHP.
Now the point is that I use alot of db connections in my new project. This are alot of different DB's an require different connection.
Does anybody a way where I can create a function what makes me use my code like this? Getdata($User, $beerbrand, $sales); and use these variables in my code? I use the same way to get the data out of the database everytime. But it's alot of code, where I think it should be possible to make that a little easier.
The way I use now:
mysql_connect($host, $user, $password) or die ("cannot connect");
mysql_select_db("$db_name");
$stuff = mysql_query("SELECT * FROM beers ORDER BY ID");
while($frontstuff = mysql_fetch_array($stuff)){
$us = $frontstuff['Beer'];
}
If you think this is a stupid question, please be gentle and explain it to me in a easy way.
Best regards

Answer 1

<?php
class Database {
private $connection; //Database Connection Link
private $userName; //Database server User Name
private $password; //Database server Password
private $database; //Database Name
private $hostname; //Name of database server
public function __construct() {
$this->hostname=your servername
$this->userName=yourusername
$this->password=yourpasswrod
$this->database=your bb name
try {
$this->connectlink = mysql_connect($this->hostname,$this->userName,$this->password);
if(!($this->connectlink)) {
throw new Exception("Error Connecting to the Database".mysql_error(),"101");
}
if(!mysql_select_db($this->database, $this->connectlink)) {
throw new Exception("Error Connecting to the Database1".mysql_error(),"101");
}
}catch(Exception $e){
//print_r($dbConfig);
echo $e->getMessage();
}
}
public function __destruct() {
#mysql_close($this->connectlink);
}
}
you can crete a database file like this for specifying connnection
and you can use this file in processing your query in another pages.Eg
<?php
include_once("database.php");
function __construct(){
$this->db = new Database;
}
public function getstuf($parameter){
$stuff = mysql_query("SELECT * FROM beers ORDER BY ID");
while($frontstuff = mysql_fetch_array($stuff)){
$us = $frontstuff['Beer'];
}
return stuff;
}
}