next page.

a page is too long and split a few of pages, on each page there are next link.
is the next page belong to previous page? if the first page pr is 6 the all next pages are also 6?
in theory,　next page has nothing to do with first page.
on my main page(index.php) there are many links ,(contain next link) but if search some keyword in google,only content in next page show.
Does google treat next pages and the next next page be the same?

 

I'm not exactly sure. I would think that Google just sees the next page link as another link, and not necessarily as a continuation of the first page.

 

namd3r is right, the search engines will treat each page as its own individual entity.

 

my page have many link that link to many content.
but why only text that contained in next page(in adding to first page) showed in serp? it seem google treat them the same. the same pr?

 

No google will treat every next, next next page as a separate url, pr also changes in those pages.
In case of serp it shows the text of next page becoz when u add the new test & links on 1st page the old text automatically moved to 2nd page & ur 1st page was not crawled by google since then. donot wory it will be ok when the pages are get crawled.