PHP error happened

Technical information
Error type2
Error descriptionmysql_connect() [function.mysql-connect]: Access denied for user 'luxurybu'@'localhost' (using password: YES)
URLwww.wholesale-flights.com/wfgrossbuh/login.php?
Error file/home2/luxurybu/public_html/wholesaleflights/wfgrossbuh/include/dbconnection.php
Error line9
SQL query