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PaulGrimshaw
Joined: 06 Mar 2006
Posts: 6
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 Posted: Wed Mar 08, 2006 12:44 pm Defining a variable once per visit? |
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Hi,
I need to define a variable once per visit to my site and then later on I will be changing it in another script (for tracking positions of menus).
I can not use frames etc so each time the page changes, the variable gets wiped again (as I am resetting it by defining it everytime).
Is there some way of adding a check to see if a variable exists, if so, do nothing. If it doesnt exist, then define it?
Thanks,
Paul. |
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Corey Bryant
Site Admin
Joined: 15 May 2004
Posts: 8748
Location: Castle Pines North, CO USA
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| Posted: Wed Mar 08, 2006 1:13 pm |
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Moved to other languages
Thanks!
-Corey |
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chrisxkelley
Joined: 07 Dec 2004
Posts: 246
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| Posted: Fri Mar 10, 2006 6:44 pm |
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what language?
in php I would use a session variable, something like this:
| Code: |
<?
$track = $_SESSION['track'];
if (!$track){
$_SESSION['track'] = "Some value";
} else {
print 'The variable has already been set!';
}
?>
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that will chack to see if the session variable exists, and if not, it will set the session variable $track to "Some Value". and if it already exists, it will just print an already been set message. |
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