<- BACK button

[zzz]

I'd liek to add "back" link and am trying to steer clear from JavaScript. Is there something in PHP that'll work well?

[devinemke]

you could use $_SERVER['HTTP_REFERER'] though it's not very reliable.

[planetsim]

Yes, however it cannot be trusted to work.

if (isset($_SERVER['HTTP_REFERER']))
{
    //use $_SERVER['HTTP_REFERER'] as the link
}
else
{
    //they may have come somewhere however its not set from the browser
}

[bradgrafelman]

In planetsim's example, you could use the BACK link if the referer was sent, and a simple HOME link if it wasn't.