redirection not working properly??

i have made a session based redirection ie when the authentication is valid then it redirects to the certian page.when i used the header("Location:target.php");
it shows header already sent by......problems .then i used HTML redirection(using meta tags)then the page redirects but its shows the same "header already sent by..." message in intermediate form(ie when the page is Loading)..wht's the problem i m not gettin Please Help

the code seems correct, do you have a link to the page? Some things that might cause this are some type of security software. NIS2005 does this sometimes.

Try putting an absolute path for Location:.

i.e.

header("Location: http://localhost/target.php");


Yak

That error means you have output something to the browser before redirecting. Post all your code for more help.

the code is seems correct but the problem is in your php.ini configuration .

In the PHP.ini file you must set the variable output_buffering

[output_buffering = on]

and then the code will run

If all else fails, or you just want an easy way out of this jam, you could just use this line of javascript instead:

<script>document.location='target.php'</script>

I do this sometimes when I don;t feel like dealing with session/header/buffer issues....

thnks all of u for helping me