Passing Variables threw URL

I have noticed that alot of sites pass there ID variable threw the url to the next page. does anybody know how to do this so when u click on the ID link it opens a new page with the same variables on it? an example is like this (http://www.bahb.net/index.php?file=648)

any help here would be nice, im just trying to make a simple game site.

 

<a href="http://www.bahb.net/index.php?file=<?php echo $fileid; ?>">Next Page</a>

Code (markup):

 

I think this would be the right way to go:

http://www.bahb.net/index.php?file=<?php echo $_GET['file']; ?>

Code (markup):

 

Better process those GET variables before using them. At least at a minimun with urlencode.

 

This is true.

 

$url = $_SERVER['PHP_SELF'].'?';
foreach($_GET as $is => $what){
$url .= "$is=$what&";
}

echo 'http://'.$_SERVER['SERVER_NAME'].'/'.$url;

PHP:

 

ok thanks ill try that now

 

I came across this topic as I was searching for a way to encode the variables I send in an URL. noppid, can you give me an example on how to use urlencode?

Cheers

 

It's pretty straight forward, check out the PHP.net explanation (they do a more in depth than I ever would)

us3.php.net/urlencode urlencode()
us3.php.net/manual/en/function.urldecode.php urldecode()

 

I don't know what's wrong, it just doesn't encode the variables I'm trying to send out. I have something like this: file.php?var1=256MB&var2=100. I tried creating the link like in php.net:

<?php
$query_string = 'var1=' . urlencode(256MB) . '&var2=' . urlencode(100);
echo '<a href="file.php?' . htmlentities($query_string) . '">';
?> 

Code (markup):

This just makes my url look like I'm not using encription.
Any thoughts on how to encript my urls?

 

urlencode isn't actually for the encoding of string, it's more of a url formatter, it replaces spaces with %20 and such, no encoding as you know it goes on at all, just some preg_replacing, and so in the above example, urlencode isn't performing any actions at all as the words (256MB & 100) are acceptable format to be in a url.

What exactly is it you want the link to appear as and where is it gettin vars (256MB & 100) from ?

 

I want the regular user not to be able to modify the variables I send via URL. The page from which the variables are sent is here. I then need to use the variables in several places on the destination page.

 

simple way to achieve that would be base64_encode(urlencode($var)) and on the destination page, do base64_decode(urldecode($var)) on all vars in every url

maybe someone else has a better idea.....

If it's for a search page, you could use search ids, but inserting the form data into a `sids` table an storing what was searched in there, you could also add the search ids to session and display recent searches, or set cookies for search ids ....

 

I did this:

<a href="mp3-player-CX112.php?cap=<?php base64_encode(urlencode('256MB'))?>&pr=<?php base64_encode(urlencode('116'))?>">Mp3 Player CX112 256MB</a>

Code (markup):

It doesn't seem to work.
Any other ideas?

 

I could come up with some ideas if I knew more, for instance, I don't get why you want to encode the urls if they are clicked on a page that clearly states what the url is for, seconds I don't see why you would want a static list of urls in the first place ?