<?php
function ConnectToDatabase() {
   $DatabaseName = 'blah';
   $DatabaseServer = 'localhost';
   $DatabasePassword = 'blah';
   mysql_connect_db($DatabaseName, $DatabaseServer, $DatabasePassword)
}

function QueryDatabaseTable($sqlString) {
  ConnectToDatabase()
  return mysql_query($sqlString);
}

$ReturnedQuery = QueryDatabaseTable('SELECT * FROM Users WHERE Username=Seno');
?>