Observations regarding redirection

[Albert Ahtenberg]

Hello,

I don't know if it is only me but I was sure that header("Location:url")
redirects the browser instantly to URL, or at least stops the execution of
the code. But appearantely it continues to execute the code until the
browser send his reply to the header instruction. So an exit(); after each
redirection won't hurt at all

[Kevin Thorpe]

Albert Ahtenberg wrote:

Hello,

I don't know if it is only me but I was sure that header("Location:url")
redirects the browser instantly to URL, or at least stops the execution of
the code. But appearantely it continues to execute the code until the
browser send his reply to the header instruction. So an exit(); after each
redirection won't hurt at all

header('Location:xxx') simply adds the redirection as a header line at
the top of the document. The rest of the script still continues to
execute. Once the browser has loaded the document it reads the header
and goes off to load the redirected page. You will need an exit() after
such a redirection.

[Michael Fesser]

..oO(Tyno Gendo)

>yes, i fell into that trap once...

you always need to exit( header('Location: /blah.php') ); to avoid code
after the header being executed.

And you have to use an absolute URL, as required by the HTTP spec.

Micha