Need help pls give me a solution for this PHP file

Please help me i dont know,what is 'root' in this file,that ive to change anything or ive to leave as it is.And where to put mysql database name,sql username & password in this .php file? Pls give me an example friends.I tried lot but failed.

<?php

// mod Gemorroj
error_reporting(0);

// õîñò, ïîüçîâàòåëü, ïàðîëü
mysql_connect('localhost', 'root', '') or die('Could not connect');
// èìÿ ÁÄ
mysql_select_db('sea2') or die('Could not db');

mysql_query('SET NAMES `utf8`');

if ($_SERVER['HTTP_X_FORWARDED_FOR']) {
    $ip = mysql_escape_string($_SERVER['HTTP_X_FORWARDED_FOR']);
}
else
    if ($_SERVER['HTTP_CLIENT_IP']) {
        $ip = mysql_escape_string($_SERVER['HTTP_CLIENT_IP']);
    }
    else
        if ($_SERVER['REMOTE_ADDR']) {
            $ip = $_SERVER['REMOTE_ADDR'];
        }

$time = time();
$setting = mysql_query('SELECT * FROM `setting`');
while ($set = mysql_fetch_assoc($setting)) {
    $setup[$set['name']] = $set['value'];
}

$hackmess = $setup['hackmess'];
mb_internal_encoding('UTF-8');

?>

Code (markup):

 

I thing you should try to put your user and pass here

// õîñò, ïîüçîâàòåëü, ïàðîëü
mysql_connect('localhost', 'DB_username', 'DB_PASS') or die('Could not connect');

Code (markup):

and database name

// èìÿ ÁÄ
mysql_select_db('DB_NAME') or die('Could not db');

Code (markup):

 

Now ill try & post here whether its working or not bro.Thank you very much for concerning my post.

 

Tried not working bro.

 

sorry to hear, but on these places is logical to put the needed info.
Are you sure you writing your username and db-name in proper way

something like
basename_-_databasename
db_username

 

Bro theivo installation completed thank you,thank you very much for your suggestion,and it helped me to do the rest.I just forgot to remove one quote frm this file.

 

Glad to hear this

All the best!