Coding Challenge

passagewds

Here is a challenge to see who can get it fastest and smallest.

Take the following text in a variable,

the quick brown fox jumped over the lazy dog. To see more of the dog's story go to http://www.lazydog.com. To see more of the fox's story go to http://www.brownfox.net. See you there.

Transform it to become

the quick brown fox jumped over the lazy dog. To see more of the dog's story go to <a href="http://www.lazydog.com">www.lazydog.com</a>. To see more of the fox's story go to <a href="http://www.brownfox.net">www.brownfox.net</a>. See you there.

Hope some one can do it.

tomhath

It's a one-liner with preg_replace, but you haven't given near enought information to write that line:

http://www.phpbuilder.com/manual/function.preg-replace.php

passagewds

What more information do you need?

I just want it to go from one variable to become another.

passagewds

$Information = preg_replace("/((http(s?):\/\/)|(www.))([\w.]+)/i", "<a href=\"http$3://$4$5\" target=\"_blank\">$4$5</a>", $Information);

seems to work with one small problem....

if the link is www.domain.com it works great but if it is www.domain.com/news/index.html it only links the www.domain.com part...

What do I have to do to get the rest of it?

Michael

feldon23

Does it need to work with ANY possible address like

http://www.elvis.tv/

or http://dangerous.stuff.atthe.edgeof.ru/testing123.php3

passagewds

Yes, it will need to handle any link that a client inputs into his news journal.

To add to it, the design has it possible for the client to go back to the original message and modify it if necessary..

Is it possible to reverse the preg_replace when the data is gathered from the database so as to only present the www.domain.com/news/index.html part instead of the whole html code?

This would prevent the code from duplicating link on link.

feldon23

Have you tried the example in the PHP manual?

$text = ereg_replace("[[:alpha:]]+://[^{<>[:space:]]+[[:alnum:]/]",}
"<a href=\"\0\">\0</a>", $text);

bunner_bob

Try this little puppy:

preg_replace("(\r\n|\n|\r)", "<br />", preg_replace(array("/(([\w\.]+))(@)([\w\.]+)\b/i", "/((ftp(7?):\/\/)|(ftp\.))([\w\.\/\&\=\?\-]+)/", "/((http(s?):\/\/)|(www\.))([\w\.\/\&\=\?\%\#\-]+)/"), array("<a href=\"mailto:$0\">$0</a>", "<a href=\"ftp$3://$4$5\" target=\"_blank\">ftp$3://$4$5</a>", "<a href=\"http$3://$4$5\" target=\"_blank\">http$3://$4$5</a>"), $text))

As far as I've been able to determine, this works like a charm on pretty much anything - emails, URLs and ftp addresses.

Of course it isn't exactly "small" 😉

Also as a p.s., I've noticed when copying and pasting out of postings on this board, the space characters tend to get transformed into something that PHP doesn't like - I usually just go through and replace them with hand-typed spaces.