can you help me with a simple php code to connect a login page to a (mysql) database. I need to creat a login page to a database.

give a man fish and feed him for a day, teach him how to fish ,

i. visit www.google.com
ii. type exactly that ur question
iii. press Enter

the synonym for the above steps is called 'google it'

Meanwhile try this:

<?php
$myServer = "localhost";
$myUser = "your_name";
$myPass = "your_password";
$myDB = "examples";

//connection to the database
$dbhandle = mssql_connect($myServer, $myUser, $myPass)
or die("Couldn't connect to SQL Server on $myServer";

//select a database to work with
$selected = mssql_select_db($myDB, $dbhandle)
or die("Couldn't open database $myDB";

//declare the SQL statement that will query the database
$query = "SELECT id, name, year ";
$query .= "FROM cars ";
$query .= "WHERE name='BMW'";

//execute the SQL query and return records
$result = mssql_query($query);

$numRows = mssql_num_rows($result);
echo "<h1>" . $numRows . " Row" . ($numRows == 1 ? "" : "s" . " Returned </h1>";

//display the results
while($row = mssql_fetch_array($result))
{
echo "<li>" . $row["id"] . $row["name"] . $row["year"] . "</li>";
}
//close the connection
mssql_close($dbhandle);
?>

from http://www.webcheatsheet.com/PHP/connect_mssql_database.php

Good luck