Re: understanding session vars ?

Gregory, Values in the $_SESSION superglobal will persist over pages so long as session_start() is called on each page. Cheers, David Grant Gregory Machin wrote: > I have a test script.. > What i'm trying to achieve is once the user has clicked on link1 the > value of item must equal x and if the user clicks on link2 the value of > items must stay equal to x while setting action equal to y .. > > <?php > session_start(); > echo 'Welcome to testpg'; > $_SESSION['time'] = time(); > > > if (isset($_GET['item'])){ > $_SESSION['item'] = $_GET['item']; > echo $_SESSION['item']; > } > > if (isset($_GET['action'])){ > $_SESSION['action'] = $_GET['action']; > echo $_SESSION['action']; > } > > > ?> > <html><br /><a href="test.php?item=x&<?php echo strip_tags(SID); > ?>">link1</a></html> > <html><br /><a href="test.php?action=y&<?php echo strip_tags(SID); > ?>">link2</a></html> > > thanks > > On 11/24/05, * David Grant* <david@grant.org.uk > <mailto:david@grant.org.uk>> wrote: > > Gregory, > > Are you always setting $_SESSION['menu'] to the contents of > $_GET['menu']? If so, the second link will set $_SESSION['menu'] to > null. You need to check the contents of $_GET['menu'] first before > setting, i.e. > > if (isset($_GET['menu'])) > $_SESSION['menu'] = $_GET['menu']; > > Cheers, > > David Grant > > Gregory Machin wrote: > > Hi > > I'm a bit stuck on session var, and thier implamentation, or my > perseption > > thier of. > > I have a page and need certian vars to be persistat each time the > page is > > called. > > This is done to detmin the content of the page through logic that > calls > > different includes. > > > > But I cant get the vars to be persistant. > > note the page call it's self. > > > > ./index.php > > <?php > > session_start(); > > $_SESSION['menu'] > > > > ?> > > <html><A href=./index.php?menu=1>option 1</A></html> // this > > works > > <html><A href=./index.php?other=do>differnt action</A></html> > > // > this brakes > > it . when the user links here the 'menu' var is cleared > > <?php $_SESSION['menu'] = $_GET['menu']; > > echo $_SESSION['menu']; > > > > ?> > > > > I would like the menu var (and others) to be persistant until it > is reset or > > updated. how do I acheave this . > > > > Thanks > > > > > > > > > > > > > > -- > > Gregory Machin > > greg@linuxpro.co.za <mailto:greg@linuxpro.co.za> > > gregory.machin@gmail.com <mailto:gregory.machin@gmail.comc> > > ¥¢mÁ³ÓÚLõú•> > > www.linuxpro.co.za <http://www.linuxpro.co.za> > > www.exponent.co.za <http://www.exponent.co.za> > > Web Hosting Solutions > > Scalable Linux Solutions > > www.iberry.info <http://www.iberry.info> > > (support and admin) > > > > +27 72 524 8096 > > > > > -- > Gregory Machin > greg@linuxpro.co.za <mailto:greg@linuxpro.co.za> > gregory.machin@gmail.com > <mailto:gregory.machin@gmail.com> > www.linuxpro.co.za <http://www.linuxpro.co.za> > www.exponent.co.za <http://www.exponent.co.za> > Web Hosting Solutions > Scalable Linux Solutions > www.iberry.info <http://www.iberry.info> (support and > admin) > > +27 72 524 8096