Hi
Is anybody knows what is the spiders are in the web and what they do?
I did some searches on the web and for php the only thing that i found was phpDig.(The documentation is not realy good).

can anybody gives me the realy simple code that create spider?

Thanks
regards
Mani_he

A spider is software that is automated to access web pages and gather certain data from those web pages.

A spider is also a fairly complex program. Depending on what you intend to do with it, so it is unlikely anyone will write an example of one for you here on the fly.

These are also refered to as robots, or bots. You can do some searching on the terms "PHP robot" or "PHP bot" and likely come up with some examples.

Be very careful with bots! You don't want to access pages from a site too quickly. There is a fine line between you being considered a robot and a denial of service attack.

Regards,
Rich

--
[http://www.smilingsouls.net]
Mail_IMAP: A PHP/C-Client/PEAR solution for webmail
Author: Beginning CSS: Cascading Style Sheets For Web Design

hi
thanks richard.york for your reply.

So the first page of yahoo and the search engine of google all works on spiders. Am I right?

So those hackers somehow can use spiders to get some data from other website. Am I right?

if I learn to how create spider and send it for example to your website and get some information like articles from your website and output it on my website, so you can sue me for that. Am I right?

Thanks
Regards
Mani_he

That all depends on where you are in the world, your government's stance on copyright infringement.

In most places, certainly, copyright infringement is a big deal with serious repercussions. In contrast, not such a big deal in places like China.

It also depends on how you present the data that you gather. If you present it as your own you're likely to ruffle someone's feathers. It also depends on whether or not you provide the public with a mechanism to remove their data from your index.

Yahoo doesn't use spiders that I am aware of. Their search is a directory. The difference is each listing is human-reviewed instead of automatically gathered and index by a robot. Google on the other hand does use robots.

Regards,
Rich

--
[http://www.smilingsouls.net]
Mail_IMAP: A PHP/C-Client/PEAR solution for webmail
Author: Beginning CSS: Cascading Style Sheets For Web Design

Thanks for your reply.
Do you know any books that teach, how to create it?

Thanks
Regards
Mani_he