checking for existance of $_SESSION variables
| From: | Andy B | Date: | Sat, 03 Apr 2004 22:15:52 +0000 |
| Subject: | checking for existance of $_SESSION variables | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-182261@lists.php.net to get a copy of this message | ||
hi...
i have the following code and i need to check to see if $_SESSION['guestbook'] has been
assigned to the session yet. if it has then use its values to create the combo box...if it hasnt
then run the sql query and assign it to the session as well as fill the combo box with it... any
ideas how?
here is the current code:
<?
//combo_g.php combo box for guestbook
//moduler: 100% reusable
$guestbook=mysql_query("select * from rnjresort.guestbook order by Number ASC");?>
<select name="edit">
<?if(!$guestbook){?>
<option value="">(none)</option><?}
else {?>
<option value="ERROR">Select GuestBook listing</option>
<?while($_SESSION['guestbook']=mysql_fetch_array($guestbook)){?>
<option value=<?$_SESSION['guestbook']['Number']?>><?echo
"(".$_SESSION['guestbook']['Number'].")
".$_SESSION['guestbook']['Name'];?></option>
<?}}?>
</select>
sorry for the long listing of code...
tnx