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how to unset session variable when leaving page [message #174681]

Mon, 27 June 2011 18:35

Co
Messages: 75
Registered: May 2011

Karma:

Member

Hi All,

I use a session variable to search for certain data in my records.
When a submit button is hit a session var gets filled with what I am
looking for.

if(isset($_POST['listByq']) && $_POST['listByq'] != "add") {
unset($_SESSION['listByq']);
unset($_SESSION['valueByq']);
$option = "";
$_SESSION['listByq'] = $_POST['listByq'];
if(isset($_POST['fname'])) { $_SESSION['valueByq'] =
$_POST['fname']; }
if(isset($_POST['country'])) { $_SESSION['valueByq'] =
$_POST['country']; }
}

If I browse to the next page but still using the same search query I
check again:

// IF WE HAVE A SESSION THEN FILL $OPTION WITH A VALUE
if(isset($_SESSION['listByq'])) {
$option = $_SESSION['listByq'];
if ($option == "by_country") {
$country = $_SESSION['valueByq']; //$_POST['country'];

$queryString = "WHERE country='$country' AND email_activated='1'";
$queryMsg = "Showing Members from the country you searched for";

} else if ($option == "by_firstname") {

$firstname = $_SESSION['valueByq']; //
$_POST['fname'];
$firstname = stripslashes($firstname);
$firstname = strip_tags($firstname);
$firstname = eregi_replace("`", "", $firstname);
$firstname = mysql_real_escape_string($firstname);
$queryString = "WHERE rank LIKE '%$firstname%' OR firstname LIKE '%
$firstname%' OR lastname LIKE '%$firstname%' AND email_activated='1'";
$queryMsg = "Showing Members with the name you searched for";

} else if ($option == "newest_members") {

$queryString = "WHERE email_activated='1' ORDER BY id DESC";
$queryMsg = "Showing Newest to Oldest Members";
}

} // end of if(isset($_SESSION....

This is all working like I want but when the user leaves the page and
returns later the session var is still
filled with the last search. I tried to clear the session var at the
beginning of the page but then when I browse
to the next page the session var will also be emptied.

Is it possible to clear the session var when leaving the page?

Marco

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[Message index]

		how to unset session variable when leaving page By: Co on Mon, 27 June 2011 18:35
		Re: how to unset session variable when leaving page By: Jerry Stuckle on Mon, 27 June 2011 21:29
		Re: how to unset session variable when leaving page By: unknown on Tue, 28 June 2011 23:31
		Re: how to unset session variable when leaving page By: Jerry Stuckle on Wed, 29 June 2011 00:23
		Re: how to unset session variable when leaving page By: dougatmilmacdotcom on Mon, 27 June 2011 22:41
		Re: how to unset session variable when leaving page By: Mick Gurling on Tue, 28 June 2011 03:03

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