analyze links in a string

[double-f]

i have a multi-line string, with several links inside, (plaintext - eg. http://etc.com)

is there any 'ellegant' and quick method to add the '<a href=...' tags to the string parts, based on the part of the string that was read? i am lost in regular expressions.

thank you

[Anon]

These two regex will turn URLs (the first one) and email addresses (the second one) into hyperlinks where the var text is your block of original text.

$text = eregi_replace("(http|https|ftp)://([[:alnum:]/\n+-=%&:_.~?]+[#[:alnum:]+])","<a href=\"\1://\2\">\1://\2</a>",$text);

$text = eregi_replace("(([a-z0-9_]|\-|\.)+@([^{[:space:]]*)([[:alnum:]-]))",} "<a href=\"mailto:\1\">\1</a>", $text);

Marcus

[double-f]

i have found one small 'bug' in this link:
if you have a '@' in your url string, it goes crazy eg:

http://www.click.com?user=[e-mail]

it 'hrefs' only until the @ sign.

[Anon]

Good point. I've never really encountered this yet, but I'm thinking you just add the 'at' symbol to the second regex match. Instead of:

$text = eregi_replace("(http|https|ftp)://([[:alnum:]/\n+-=%&:_.~?]+[#[:alnum:]+])","<a href=\"\1://\2\">\1://\2</a>",$text);

Change to:

$text = eregi_replace("(http|https|ftp)://([[:alnum:]/\n+-=%&:_.~?@]+[#[:alnum:]+])","<a href=\"\1://\2\">\1://\2</a>",$text);

Other than that, you could just make sure your db entries get slashed prior to entry. That should take care of the problem in the first place, right?

[double-f]

no, it does not work as supposed, please analyze the below results"

the base link is:
http://www.somewhere.com/scripts/users.php?user=[e-mail]&activate=blahblahblah

before adding @:
<a href="http://www.somewhere.com/scripts/users.php?user=one">http://www.somewhere.com/scripts/users.php?user=one</a>@groove.com&activate=blahblahblah

after adding @:
<a href="http://www.somewhere.com/scripts/users.php?user=<a href="mailto:[e-mail]&activate=blahblahblah">[e-mail]&activate=blahblahblah</a>
Your">http://www.somewhere.com/scripts/users.php?user=<a href="mailto:[e-mail]&activate=blahblahblah">[e-mail]&activate=blahblahblah</a>

(the Your is the beginning of the next line)

let's master it!