Passing variable throught hyperlink

[blogfisher]

Hi,

I want to pass my variable value when someone click on hyperlink. However i don't want to pass along with '?' i.e.

 

<a href="http://site1.com?val=$num">link1</a>

 

Is there any other way ? As i have more than 50 links as below :

 

<a href="http://site1.com>Site1</a> - pass value 1 to site1.com

<a href="http://site2.com>Site2</a> - pass value 2 to site2.com

<a href="http://site3.com>Site3</a> - pass value 3 to site3.com

<a href="http://site4.com>Site4</a> - pass value 4 to site4.com

<a href="http://site5.com>Site5</a> - pass value 5 to site5.com

and so on...

 

Is it possible to pass through post method something like using form... ??

Edit/Delete Message

[rhodesa]

um, you could do a form, and have the link post the form...but that seems like a lot of useless code. what is wrong with doing ?val=$num ?

[blogfisher]

How to do with form ? can you please give an example ?

 

well, i don't want to let user know about the value i am passing thought hyperlink. So i dont want to use ?val=something method...

[rhodesa]

How to do with form ? can you please give an example ?

 

well, i don't want to let user know about the value i am passing thought hyperlink. So i dont want to use ?val=something method...

 

form method below...but, a couple things. even with the form method, if the user wanted to, they could see what value is being passed. also, with the ?val=$num method, you can have the receiving page remove it after it gets the data:

<a href="http://site1.com?val=123">link1</a>

then on site.com/index.php, put the following code at the top of the page:

<?php
  if($_GET['val']){
    //do what you want with $val. add it to a database, or session or something
    //note though, that after the header statement below, $_GET won't exist anymore
    //so if you want the value for later in the page, put it in the SESSION
    
    //Redirect them back to this page without the $_GET
    header('Location: '.$_SERVER['PHP_SELF']);
    exit;
  }
  //continue with your page

?>

 

the form method would be:

<form id="form_<?php echo $num;?>" action="http://site1.com" method="POST">
  <input type="hidden" name="val" value="<?php echo $num;?>" />
  <a href="#" onclick="document.getElementById('form_<?php echo $num;?>').submit();">Site 1</a>
</form>

[blogfisher]

Thx rhodesa

 

i guess passing through ?val=$num will be fine. will do small encryption to the value being passed and later decrypt it.

 

anyway, thx for the quick suggestion

 

Cheer!

[rhodesa]

if it's REALLY sensitive info, you can have the originating site post the data via CURL (so directly server to server). have site1 store that data in a database, and respond back with a random md5 hash (also but this hash in the database with the data sent). then, in the url, make it:

http://site1.com/?hash=<the_hash_sent_back_from_curl>

then, site1 can use the hash to retrieve the data from the database

[blogfisher]

Data is not much sensitive.. so simple encryption will work for me. Also i don't store data to database, just passing the value which will be used by another algorithm and display result to user.

 

thx.