mysql server port number

If your MySQL server runs on default settings, you don't need to specify that.

Default MySQL port is 3306.

[updated to show mysql_error() usage]

$conn = mysql_connect($dbhost, $dbuser, $dbpass)    or die('Error connecting to mysql: '.mysql_error());

For windows, If you want to know the port number of your local host on which Mysql is running you can use this query on MySQL Command line client --

SHOW VARIABLES WHERE Variable_name = 'port';mysql> SHOW VARIABLES WHERE Variable_name = 'port';+---------------+-------+| Variable_name | Value |+---------------+-------+| port          | 3306  |+---------------+-------+1 row in set (0.00 sec)

It will give you the port number on which MySQL is running.

check this out dude

<?php// we connect to example.com and port 3307$link = mysql_connect('example.com:3307', 'mysql_user', 'mysql_password');if (!$link) {    die('Could not connect: ' . mysql_error());}echo 'Connected successfully';mysql_close($link);// we connect to localhost at port 3307$link = mysql_connect('127.0.0.1:3307', 'mysql_user', 'mysql_password');if (!$link) {    die('Could not connect: ' . mysql_error());}echo 'Connected successfully';mysql_close($link);?>