Question

 $resource = "THIS IS ABOUT WWW.JONAKCOMPUTERS.COM, HTTP://HIGHLOW.COM, AND TESTINGSERVER1.COM"

and I want to pull out the three urls into another string that is similar to:

 $all_urls = "JONAKCOMPUTERS.COM - HIGHLOW.COM - TESTSERVER1.COM

I found this by someone else:

$pattern = '#(www\.|https?:\/\/){1}[a-zA-Z0-9]{2,}\.[a-zA-Z0-9]{2,}(\S*)#i';
preg_match_all($pattern, $string, $matches, PREG_PATTERN_ORDER);

But it doesn’t pull “jonakcomputers.com” only “http://url” or “www.url”

Sorry for the caps, I just wanted to make it clear that its not case sensitive at the end. I can always capitalize it. I need to do this before the page loads, so it could be javascript or php.

If I could pull one out I think I could do a loop to keep checking for new ones till it runs out.

Thanks for anyone willing to help out.

Answer 1

I ran your code in a console, just adjusting the variable name in the last snippet so that:

php > $resource = "THIS IS ABOUT WWW.JONAKCOMPUTERS.COM, HTTP://HIGHLOW.COM, AND TESTINGSERVER1.COM"
php > $pattern = '#(www\.|https?:\/\/){1}[a-zA-Z0-9]{2,}\.[a-zA-Z0-9]{2,}(\S*)#i';
php > preg_match_all($pattern, $resource, $matches, PREG_PATTERN_ORDER);
php > var_dump($matches);
array(3) {
    [0]=>
        array(2) {
            [0]=>
                string(23) "WWW.JONAKCOMPUTERS.COM,"
            [1]=>
                string(19) "HTTP://HIGHLOW.COM,"
        }
    [1]=>
        array(2) {
            [0]=>
                string(4) "WWW."
            [1]=>
                string(7) "HTTP://"
        }
    [2]=>
        array(2) {
            [0]=>
                string(1) ","
            [1]=>
                string(1) ","
        }
}

What you see in the preg_match return is a multidimensional array w/ the following:

0: Full Matches

1: SubPattern 1 matches

2: SubPattern 2 matches

The only fix I see is that you’ll need to adjust the RegExp slightly to account for the lack of ww or http. so just use this for pattern:

$pattern = '#(www\.|https?:\/\/)?[a-zA-Z0-9]{2,}\.[a-zA-Z0-9]{2,}(\S*)#i';

and your $matches should now contain all 3.