How to use Header()????

[Phrank]

I have a page called userlogin. Has two fields name and password. When they hit the hit the login button I loop back to the same page and with php I check to see if the login and password are there using the post method. All is well. I check the login and password against a mysql database. If it is correct I use the header function to send the user to the next screen.

header("Location: management.php");

I always get the error message "Warning: Cannot modify header information - headers already sent by.."

I do not send any output as far as I know before the header stmt. I do open the mysql database and verify that the user is valid.

I tried using ob_start and ob_end_flush to clear the buffers to no avial.

I have never been able to get this header function to work properly.

Can I get some guidance here? Am lost.

:mad:

[drew010]

make sure you have no spaces or newlines before the php tags, this will cause that error.

[DeadlySin3]

<?php
header("Location: management.php");

/*
That's the correct usage of the header() function. From what I understand about header(), it must be 
called before ANY output is sent to the browser. If you're using sessions, make sure you session enable management.php with session_start(); as that will also create this error. 
Hope this helps!
 */
?>

[maco]

I have the same problem earlier, the best way is to put them at the first line of your file.

<?PHP
header("Location: management.php");

// Other PHP code

?>

HTML code here