I need help with localhost..

[Reasons]

I need help for localhost because when I go to localhost/ There is an error and that error is:

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Deprecated: Function set_magic_quotes_runtime() is deprecated in C:\xampp\htdocs\global.php on line 30

Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'root'@'localhost' (using password: YES) in C:\xampp\htdocs\inc\class.db.mysql.php on line 49
Database Error
Access denied for user 'root'@'localhost' (using password: YES)
Script execution was aborted. We apoligize for the possible inconvenience. If this problem is persistant, please contact an Administrator.

Please Help Meh...

Now it says this...

Deprecated: Function set_magic_quotes_runtime() is deprecated in C:\xampp\htdocs\global.php on line 30

Notice: Undefined variable: localhost in C:\xampp\htdocs\inc\class.db.mysql.php on line 31

Notice: Undefined variable: root in C:\xampp\htdocs\inc\class.db.mysql.php on line 32

Notice: Undefined variable: password in C:\xampp\htdocs\inc\class.db.mysql.php on line 33
Database Error
Access denied for user ''@'localhost' to database 'uberdb'
Script execution was aborted. We apoligize for the possible inconvenience. If this problem is persistant, please contact an Administrator.

 

[Meap]

then edit the class.db.mysql.php then?
Probs put in the details wrong

 

[Zer0.]

Ye, double check information