[Resolved] Yet another HTTP_REFERER question

[jcdrake]

I'm having trouble getting $SERVER['HTTP_REFERER'] to work in a meta tag. This code:

     echo '<meta http-equiv="Refresh" content="0; URL='$_SERVER['HTTP_REFERER']'">';

gives me a variable parse error.

     echo '<meta http-equiv="Refresh" content="0; URL=' . $_SERVER['HTTP_REFERER']'">';

gives me a string error.

I've read through all the referer-related posts here, but can't find anything about using it in a meta tag. Is that because it won't work, or am I missing something obvious?

[mrhappiness]

    echo '<meta http-equiv="Refresh" content="0; URL='.$_SERVER['HTTP_REFERER'].'">';

[jcdrake]

Just tried it... that causes the browser to keep reloading the (blank) page over and over.

[Installer]

That's the same behavior you'd get if the value wasn't set, so obviously it's not being passed from your referring page. From your reading of the posts, that should be no surprise. Try this:

if (isset($_SERVER['HTTP_REFERER'])) { 
    echo '<meta http-equiv="Refresh" content="0; URL=' . $_SERVER['HTTP_REFERER'] . '">'; 
} else { 
    echo '$_SERVER[HTTP_REFERER] not set.'; 
}

[jcdrake]

Right. So now's probably a good time to abandon using it altogether...

Thanks!