URL tags regex help

silent

I have the following regex (I use eregi_replace)

[url]([A-Za-z0-9.\/\?&:=-+]+)[/url]

It just replaces with :

It allows url and /url tags in blocks (like a lot of message boards)

It seems to work fine, except when I use it with a more complex URL like this :

http://search.yahoo.com/search?ei=UTF-8&fr=sfp&p=PHP

This is the first time I have really tried to use regex., and I want to understand it, not just rip somebody else's code that works...

Thanks in advance!

silent

I just realized that it doesn't really matter what the inside of the
[url] tags say... if they want to make it a link, then I'll let them make it a link.

Here's the new regex I use :
[url]([[:alnum:][:punct:]/]*)[/url]

The above smiley is supposed to be a : followed by punct:

hehehe