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preg_match / ereg question: Find only non clickable urls
GryphonLeon

5+ Year Member



 
Msg#: 8522 posted 12:30 pm on Jun 6, 2005 (gmt 0)

Hi Everyone,

I'm trying to convert non clickable urls in a string into clickable urls (and add target="_blank" to the links). The preg_match / ereg pattern should ignore any urls that are already clickable (ie: the ones with <a href="..">..</a> tags).

Here's what I've come up with so far:
-------------------------
$linkstarget = "_blank";
$text = 'A clickable link: <a href="http://www.domain.com/test/test.html">clickable</a> and a non clickable link: [domain.com';...]

$replace = "<a href=\"\\2\" target=\"".$linkstarget."\">\\3</a>";
$text = eregi_replace('(<a [^<]*href=["\']?([^ "\']*)["\']?[^>]*>([^<]*)</a>)',$replace, $text);

echo $text;
-----------------------
It adds the target="_blank" part to the link that was already clickable, but now I need something that finds the non clickable link ONLY and adds the <a href="..">..</a> tags. It's very important that it will only find the non clickable url, otherwise it will also add href tags to the already clickable url.

Any help would be greatly appreciated!

Leon

 

GryphonLeon

5+ Year Member



 
Msg#: 8522 posted 1:49 pm on Jun 9, 2005 (gmt 0)

*bump*

Anyone with a possible solution?

coopster

WebmasterWorld Administrator coopster us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 8522 posted 5:42 pm on Jun 9, 2005 (gmt 0)

Welcome to WebmasterWorld, GryphonLeon.

I think a look behind assertion [php.net] may be what you are wanting. I don't have time to throw down a regex right now, but the PHP manual pages might get you started in the right direction.

Give it your best effort and we'll have a look if you get stuck!

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