How do you select the last value in an array?

Anon

Probably a stupid question (if such a thing exists), but searching this site doesn't work, so...

If I "explode" or "split" something into strings, how do I reference the final string (if I don't split it into a set number of strings)? For instance, if I'm exploding a domain name (using something like this:
<?php
$hostname = "computer4A.somehost.com";
$expname = explode (".", $hostname);
?>), how do I check to see if the last string is .com, .net, .edu, etc.... if I don't know how many strings there will be after explosion?

Anon

use count () , this function gives you number of items in array, so you access
$count=count($expname);
$expname[$count-1] would give you "com"

the minus 1 is because array start from zero, but count() starts counting from 1...

Anon

I figured it out. Here's the code if anyone cares:

$hostname = @gethostbyaddr($REMOTE_ADDR);
$expname = explode (".", $hostname);
$topleveldomain = end ($expname);

Anon

<?php
$hostname = "computer4A.somehost.com";
$expname = explode (".", $hostname);
// Point to the last element of array
end($expname);
// Get the current element of array
pos($expname);
//do what u want to do here on...
?>