Re: $_SERVER[HTTP_REFERER]

From: Date: Thu, 08 Jul 2004 09:49:24 +0000
Subject: Re: $_SERVER[HTTP_REFERER]
References: 1 2 3  Groups: php.general 
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Shaun a écrit :
after lots of investigation it appears that it is just my laptop that won't disply the variable, maybe because I am using Norton Firewall?
Possible. The REFERER HTTP field is OPTIONAL -- See http1.1 spec (rfc2616) or this list archives. So it's not a field anyone should rely upon. More and more software (firewall, proxies, privacy tools) just dont send it, or send it modified (same thing for the UserAgent field, which can even be modified on several browsers)
reason, is there an alternative server variable?
No. It can be empty or even (easily) faked. Christophe

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