help with sessions and variables

[martin9t9]

hey guys im writing some code for my website... it goes like this

 

Page 1

<?php
/* this page is sent to page 2 */
$postid = 105;

?>

 

Page 2

<?php

session_start(); 
/* this page redirects to page 3 */
$_SESSION[$postid]='rating';

?>

 

Page 3

<?php

if($_SESSION['$rows['id'] == $rows['id']) echo 'yes'; else echo 'no';

?>

 

 

this code is on www.martin9t9.com/announcement once youve signed up join the pakenham network then go to the homepage and click on of the ticks, i wanna make it so you can only press that button once.

the part im unsure of is the $_SESSION[$postid] = 'true'; part i dont understand why i can use the variable there.

[WebStyles]

not sure what you want. page 3 does not start with session_start() so you wont be able to access $_SESSION variables.

it also has some errors.

[martin9t9]

Pretty much all I wanna do is use this code      $_SESSION['$variable'] = 'something'; but what's the syntax? I can't seem to beable to use $variable where it is like that.

[revraz]

Because you can't.  What's wrong with $_SESSION['variable'] ?

 

Look at a Session tutorial, sounds like you are just unsure how they work.

[martin9t9]

I can't use that because I want more than one session depending on the variable. What I'm doing is making a website where you can make posts then you can rate them but I only want them to beable to be rated once by that person so I was gonna make a session to make that so.

[WebStyles]

if they have to logon to vote/rate then you can use their username in a session variable to track which ones they've voted on. this of course will be reset if they logout and then logon again. better to just store their votes in a database.

[martin9t9]

Could you please give me an example of how to do this, I am pretty new to php.