$_server['http_referer']

[crumb]

I want to check to see if my webpage was directly accessed or to see where it was linked from, but if I use this variable($_SERVER['HTTP_REFERER']) it gives me an error when it was directly accessed. I want to be able to either catch the error or check to see if it exsists first before I use it. How do I do it? Either one is fine.
Thanks,
Andy

[devinemke]

crumb wrote:

I want to be able to either catch the error or check to see if it exsists first before I use it.

just use [man]isset[/man]

[crumb]

thanks, it worked great! i just couldnt think of the name. all i could think of was 'defined'

[execute]

sometimes HTTP_REFERER is not defined, because some browsers dont send it, it can be controlled/changed by anyone so it is not to be trusted.