user authentication...

[[deleted]]

Hi guys,

I used HTTP 401 headers to prompt for username/password combination, which will then be available to the script as $PHP_AUTH_USER and $PHP_AUTH_PW.
But the problem is I always got this error message -
" Warning: Cannot add header information - headers already sent by (output started at /usr/home/mezi/public_html/user.php:5)... "

What should I do? there is anything I mis?..
Thanks in advance.

[theslinky]

Check to see if you are printing/echoing anything before you pass these headers.

Note, there cannot be ANY content (not even a measly whitespace) before any headers are sent out. If you want to prevent this, then use output buffering.

Also, if you are embedding PHP in the middle of the HTML code, your headers WILL NOT WORK! This is because the headers MUST be sent before the HTML output begins.

-sridhar

[[deleted]]

Thanks bro. It really works. I realize there is a space b4 the code.

[[deleted]]

There is one more thing. How can I remove/logout from the page?

thanks