Can PHP know when a page is refreshed?

[epots9]

i was wondering if there is a way in php to figure out if the page was refreshed or it came from another page?

[pbmods]

Check out $_SERVER['HTTP_REFERER'].

[ronnil]

something like this

<?php
if($_SERVER['HTTP_REFERER'] != $_SERVER['SCRIPT_URI'])
{
    //This page was loaded from another page
} else {
   //The page loaded itself
}
?>

Don't think there's a problem with $_GET data, but not sure

[Motoma]

something like this

<?php
if($_SERVER['HTTP_REFERER'] != $_SERVER['SCRIPT_URI'])
{
    //This page was loaded from another page
} else {
   //The page loaded itself
}
?>

Don't think there's a problem with $_GET data, but not sure

Good one ronnil! Thanks for posting, I hope to see you around here more often!

[pbmods]

Don't think there's a problem with $_GET data, but not sure

GET variables will appear in $_SERVER['REQUEST_URI'], but not in $_SERVER['SCRIPT_URI'].

[epots9]

i still can't get it to work. if it is redirected by another page i go my tasks and set [PHP]$_SERVER["HTTP_REFERER"] = "";[/PHP]

but that doesn't work, cuz when i hit refresh the server overwrites it and sets it back to the value indicating that it came from another page once again.

how can i counter this?

[Motoma]

i still can't get it to work. if it is redirected by another page i go my tasks and set [PHP]$_SERVER["HTTP_REFERER"] = "";[/PHP]

but that doesn't work, cuz when i hit refresh the server overwrites it and sets it back to the value indicating that it came from another page once again.

how can i counter this?

A quick and dirty solution would be to set the current page in a session variable. At the load of each page, make sure that the referer and that session variable match, then set the session variable again. This will not work for pages that link to themselves though.

[epots9]

location.href=location.href

seems to be working for me now..