How to write two lines of code as one

Question

Possible Duplicate:
explode without variables

$domainArray = explode('.', $_SERVER['HTTP_REFERER']);
$domainname = $domainArray[1];

I have to run these 2 lines of code on many pages of a site - above code works fine.

I want to change it into one line and have tried many times unsuccessfully.

Any ideas?

If you have this on many pages then you'd better write a function for it that has a name that reflects the meaning of the code, e.g. getDomainName(). Then it does not really matter any more how many lines it will take, and you can write a nice PHPDoc description for it. — The Nail, Dec 25 '11 at 10:30

score 3 · Answer 1 · answered Dec 25 '11 at 05:46

with PHP 5.4 you can write just: $domainArray = explode('.', $_SERVER['HTTP_REFERER'])[1]

also you can write function like this

function getByIndex($array, $index) {
    return $array[$index];
}

$domainname = getByIndex(explode('.', $_SERVER['HTTP_REFERER']), 1);

score 3 · Accepted Answer · answered Dec 25 '11 at 05:50

3

This should work with PHP < 5.4:

list(,$domainname) = explode('.', $_SERVER['HTTP_REFERER']);

answered Dec 25 '11 at 05:50

vstm

score 1 · Answer 3 · answered Dec 25 '11 at 05:45

1

I'd just make it a function and have it return the Domain Name...

answered Dec 25 '11 at 05:45

ReadWriteCode

score 1 · Answer 4 · answered Dec 25 '11 at 05:48

1

PHP < 5.4

// 2 is the index of the element you want to access
current(array_slice(explode(",", $input), 2, 1)));

answered Dec 25 '11 at 05:48

afuzzyllama

score 1 · Answer 5 · answered Dec 25 '11 at 06:01

1

This isn't exactly the same because: -yours strips the leftmost subdomain -returns the tld in the event of no subdomain

anyway

echo $host = parse_url($_SERVER['HTTP_REFERRER'], PHP_URL_HOST);

answered Dec 25 '11 at 06:01

goat

5 Answers5