how to send a variable through a link in PHP??

Question

I have a page which have many short topics and a link at the end of each of them and I want to open the full topic when someone presses that link in another page so I need to know what was the topic ID on the short topic
Is there any way to send the topic ID throgh the link ???
I have tried sessions but it doesn't work because that it takes the last topic ID and shows it each time I press any link

How to pass a variable in the URL ??!!!!!!

Answer 1

Generally, you pass variables with

http://?variable1=value[&variable2=value2&variable3=value...]

This is simple to do is PHP -- if sessions isn't working for you, then something is wrong with the way you're using them.

Here; maybe this will help: http://www.plus2net.com/php_tutorial/variables.php

Answer 2

Here is a quick run through of what you can do.
I don't have time to really Test it but if you run into
any problems just email me at [e-mail]
and I'll rework it for ya, anyway here ya go:


(index.php)
?>








More...







(parseLink.php)

$tid = $_POST['tid'];

if($tid == NULL){
echo("ERROR: tid cannot equal null");
}
else
{
$_SESSION['TID'] = $tid;

if($tid == "001")
{
require("001.php");
}
else
{
echo("ERROR: Could not find page: " . $tid);
}
}
?>


(001.php)
echo("Topic stuff here");
?>


index.php has the link to parseLink.php
parseLink.php will extract the topic id from the
URL and then decide which topic to show.
In this case it's topic 001 and so using 1 more PHP
file we make 001.php which simply echo's the info.

Play around with it, let me know if you need anything.

Oh also, in parseLink it assigns a session variable called
TID to the value of $tid which is 001 if you put
echo($_SESSION['TID']);

cheers

-Void

Answer 3

Pass the variable in the URL.

Edit: If you don't know how to pass a URL parameter, then you don't yet know enough to be programming in PHP. Go back and find out how to do that.

Answer 4

URL parameters look like:

www.blaw.com/mypage.php?var1= test&var2=stuff

lookup "query string" in your PHP programming guide for information on how to retrieve these variables for use in your code.

Answer 5

add to your path link '?' and variable like this
(
and then type this code to see your value in new page
("")