[Resolved] getting a string/var from URL with a form

soulz

So heres what I am tryin to do.. I am trying to decode a URL kind of..

I am using a form.. that will allow someone to copy and paste a url like:

http://www.domain.net/index.php?a=1&b=2&c=3

and have it turn into something like

http://www.domain.net/index.php?b=2

What I am attemtping to do with the form is use it as a way for my client to copy and paste URL's from his online store when he clicks on something then copy and paste them URL into this form I am making. Because hes not to well versed with things and I can tell him look at the URL and just copy and paste the given string for 'b' into a specific area but he wont understand that. So I am trying to make things as easy as possible for him to save my self the headache later.

What I need to do and am having trouble with is when the data from the form passes through the script to convert it from one url to the other.. I need it to look for the b=2 and then return the result of what b equals..

I have tryed to use trim that doesnt work, mainly becuase the URL he can copy and past can be long or it can be short.. it can have 3 vars in it or it can have 10.. they are all dynamic.. but the one thing that exists in every single URL that he can copy is the b= .. soo how would I do that? I have even tryed !ereg with no sucess.. I dont know what I am doing wrong if its so much as syntax or im just on the other end of the spectrum for this to work.. any and all help would be great... thanks in advance

TheDefender

I know this looks long and drawn out, but it's what I have here... I made a function for you that you can put your URL into, and it should (hopefully) spit out the URL you need...

function convertURL($url){
	$parsed = parse_url($url);
	$query = explode("&", $parsed['query']);
	$newquery = "";

foreach($query AS $value){
$newvalue = explode("=", $value);
	if($newvalue[0] == "b"){
		$newquery .= $newvalue[0]."=".$newvalue[1];
	}
}

$revampedurl = $parsed['scheme']."://".$parsed['host'].$parsed['path'];
if ($newquery != ""){
	$revampedurl .= "?".$newquery;
}
return $revampedurl;
}

And here is the usage:

$url = "http://www.domain.com/index.php?a=1&b=2&c=3";
echo convertURL($url);

// OR

echo convertURL("http://www.domain.com/index.php?a=1&b=2&c=3");

Either way, your output should be:
http:// www.domain.com/index.php?b=2

If you didn't have the b= in the URL, then it will just output the URL like so:
http:// www.domain.com/index.php

Let me know if you need any help with this.

soulz

Oh man... that worked great.. could not thank you enough you saved me much much much agravation thank you.

TheDefender

No problem. Be sure to mark the thread resolved by clicking the "Mark Thread Resolved" link down at the bottom.