How to create a connection with database in PHP

Syntax:mysql_connect(servername,username,password);

servername	Specifies the server to connect to. Default value is "localhost:3306"
username	Specifies the username to log in with. Default value is the name of the user that owns the server process
password	Specifies the password to log in with. Default is ""

For example:

<?php

$con = mysql_connect("localhost","peter","abc123");

if (!$con)

  {

  die('Could not connect: ' . mysql_error());

  }

// some code

?>