Specifications

FIGURE 20.6

After the user has logged in, she can access the members’ areas.

Let’s look at the code for this application. Most of the code is in authmain.php. This script can

be seen in Listing 20.4. We will go through it bit by bit.

LISTING 20.4 authmain.php—The Main Part of the Authentication Application

session_start();

if ($userid && $password)

{

// if the user has just tried to log in

$db_conn = mysql_connect(“localhost”, “webauth”, “webauth”);

mysql_select_db(“auth”, $db_conn);

$query = “select * from auth “

.”where name=’$userid’ “

.” and pass=password(‘$password’)”;

$result = mysql_query($query, $db_conn);

if (mysql_num_rows($result) >0 )

{

// if they are in the database register the user id

$valid_user = $userid;

session_register(“valid_user”);

}

<html>

Advanced PHP Techniques

ART IV

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