selecting words in string that begin with www.

[squiblo]

I've Googled but cannot find anything, I'm sure it is out there but I'm looking in the wrong places.

 

Lets say I have..

$string = "visit my website www.domain.com";

 

How can I put the url into a variable like..

$url = "www.domain.com";

 

 

and come up with something like..

$new_string =  "visit my website <a href='http://" .$url. "'>" .$url. "</a>"; 

 

Thanks

 

 

[litebearer]

as a start - http://www.php.net/manual/en/function.stristr.php

 

then - http://www.php.net/manual/en/function.substr.php

 

or - http://www.php.net/manual/en/function.preg-match.php

[de.monkeyz]

I just googled "php auto link" and found this snippet

function make_clickable($text)
{
    $ret = ' ' . $text;
    $ret = preg_replace("#(^|[\n ])([\w]+?://[\w]+[^ \"\n\r\t<]*)#ise", "'\\1<a href=\"\\2\" >\\2</a>'", $ret);
    $ret = preg_replace("#(^|[\n ])((www|ftp)\.[^ \"\t\n\r<]*)#ise", "'\\1<a href=\"http://\\2\" >\\2</a>'", $ret);
    $ret = preg_replace("#(^|[\n ])([a-z0-9&\-_\.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)#i", "\\1<a href=\"mailto:\\2@\\3\">\\2@\\3</a>", $ret);
    $ret = substr($ret, 1);
    return($ret);
}

 

Might be what you're looking for.

[andrewgauger]

Ok, so I am going into uncharted territory with this one, but it looks like you need to mach the top level domain and anything preceding up to whitespace, so what I would do is

$url=array();
$string="this is www.mydomain.com and so is www.mydomain.net but I don't own 

telnet.superuser.com";

preg_match_all("/(\S+\.com|\.net|\.info|\.biz|\.org|\.gov|\.uk|\.edu)/" , $string, $url);

print_r($url);

 

But you should check out http://en.wikipedia.org/wiki/List_of_Internet_top-level_domains and possibly add some of the other ones you want.  At least there are fewer top level domains than there are sub domains (because matching www. is not sufficient)