Strip data from URL parameter

[warrenk]

I am trying to strip data from a URL parameter into a variable.

example:
www.website.com/product.php?id=redwidgit--1
www.website.com/product.php?id=bluewidgit--2
www.website.com/product.php?id=greenwidgit--3

What I am trying to extract is the number at the end of the parameter (ie. 1,2,3).  The number is always at the end of the parameter and it is after two dashes ('--').

Any help greatly appreciated!

Thanks,
Warren

[Deltran]

There has GOT to be a better way to do this - perhaps just get the whole, unmolested query string (I don't know how), but here is [i]a[/i] solution...

[code]
function getValue(){
print_r($_GET);
$returnMe = false;

$count = sizeof($_GET); //How many items are in the query string
foreach($_GET as $variable => $value){
$count--; //subtract 1
if($count == 0){ //Are we at the last key in the array?
$holder = explode('--',$value);
$holder_size = sizeof($holder);
if($holder_size > 1)
$returnMe = $holder[$holder_size - 1];
else
$returnMe = false;
}
}

return $returnMe;
}

echo "value is ".getValue();
[/code]

[Jessica]

deltran, I think it will always be id, so no need to go through the array.
[code]
$id = $_GET['id'];
$spot = strrpos($id, '-'); //use strrpos, not strpos
$num = intval(substr($id, $spot, strlen($id)));[/code]

Note: I didn't test this, but I think it will work.

[warrenk]

Thank you both for your quick replies! 

Jesirose, you are correct, it is always 'id'.  The code is exactly what I was looking for.  Appreciate your help!

Warren