conveting link text to link! in php

ChicoMendez

hi

anyone know how to :

if i have a link in a passage of text how i can actually change that to become clickable ? (using a regular expressions or something)

(would be nice if i could limit the text displayed between the <a></a> tags just in case of loooooooong urls

Tnx

seamus

Can you clarify?

Do you have a passage of plaintext, or a passage of HTML-formatted text?

Are you looking for something similar to what's here on boards, i.e. when I type in www.someaddress.com, it automatically adds in the link tags?

ChicoMendez

seamus wrote:

Can you clarify?

Do you have a passage of plaintext, or a passage of HTML-formatted text?

Are you looking for something similar to what's here on boards, i.e. when I type in www.someaddress.com, it automatically adds in the link tags?

hi

yes its plain text - and yes exactly as you said (like its done here)

tnx

seamus

Regular expressions will be your friend then.

You should probably try to identify three types of URLS;

Fully-qualified web addresses, e.g. http://host.boards.ie/ or http://host.boards.ie

Web addresses without a protocal (they can be assumed to be an HTTP url if they start with "www.", e.g. www.boards.ie or www.google.com

Web addresses (fully-qualified or otherwise) with a pointer to a specific document, e.g. www.boards.ie/somepage.php or http://www.google.com/somepage.php

In general, I would isolate web addresses by finding something that begins with "http://&quot; or "www." and selecting all text I can find until I locate a character which you wouldn't find in a URL.
You could easily say that the character set which you would find in a URL consists of [A-Za-z0-9?/\:&%.]. Though someone could easily point out any I've missed.

Then you take that matched text, replace it with <a href="(http://)$matched_text">$matched_text</a&gt;

I say (http://) because you will need to add that in if the text just starts with www.

ChicoMendez

seamus wrote:

Regular expressions will be your friend then.

You should probably try to identify three types of URLS;

Fully-qualified web addresses, e.g. http://host.boards.ie/ or http://host.boards.ie

Web addresses without a protocal (they can be assumed to be an HTTP url if they start with "www.", e.g. www.boards.ie or www.google.com

Web addresses (fully-qualified or otherwise) with a pointer to a specific document, e.g. www.boards.ie/somepage.php or http://www.google.com/somepage.php

In general, I would isolate web addresses by finding something that begins with "http://&quot; or "www." and selecting all text I can find until I locate a character which you wouldn't find in a URL.
You could easily say that the character set which you would find in a URL consists of [A-Za-z0-9?/\:&%.]. Though someone could easily point out any I've missed.

Then you take that matched text, replace it with <a href="(http://)$matched_text">$matched_text</a&gt;

I say (http://) because you will need to add that in if the text just starts with www.

GREAT
ok i have this so far


<?
$str='http://www.com.com kasjh kjashk dahskjhsakjhsk hskahsaskjhskjj www.com.com';
$str = ereg_replace(":alpha:+://[^<>[:space:]]+[[:alnum:]/]","<a href=\"\\0\">\\0</a>", $str);


echo $str;
?>

which transforms the http: links
however how to i regular expression the www. links (no http) so as they dont replace the links ive just changed !

tnx