March 2002
Intermediate to advanced
592 pages
15h 52m
English
Content preview from Web Database Applications with PHP, and MySQLBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
HTTP Authentication with PHP
PHP can access the credentials collected using the HTTP mechanisms introduced in the last section, and can actually manage the HTTP authentication without relying on Apache’s configuration.
Access to User Credentials from PHP
PHP provides access to the encoded
credentials from the HTTP
Authorized header field through the global
variables $PHP_AUTH_USER,
$PHP_AUTH_PW, and
$PHP_AUTH_TYPE. PHP initializes the variable
$PHP_AUTH_USER with the username and
$PHP_AUTH_PW with the password entered into the
browser authentication dialog box. The global variable
$PHP_AUTH_TYPE is initialized with the encoding
type used by the browser; typically this value is set to
Basic.
The script shown in Example 9-3 reads the authentication global variables and displays them in the body of the response. For the PHP code in Example 9-3 to display the authentication credentials, the script needs to be requested after a user has been challenged for a username and password. This happens if the file containing the script is placed within a directory configured by Apache to require authentication.
Example 9-3. PHP access to authentication
<!DOCTYPE HTML PUBLIC
"-//W3C//DTD HTML 4.0 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd" >
<html>
<head><title>Authentication</title></head>
<body>
<h2>Hi there <?=$PHP_AUTH_USER?></h2>
<p>Thank you for your password
'<?=$PHP_AUTH_PW?>'!
</body>
</html>Applications can use the encoded credentials to support features that rely on identifying ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.