Adsense compatibility with PHP variable passing?

Which PHP method to use?

[WildGoose]

Though I'm not new to Adsense, I am relatively inexperienced. I'm building a new PHP-based site which will need to pass a variable from one page to the next. I'm just learning the basics of PHP right now.

I'm trying to decide which method to use for passing the variables: GET, which if I understand puts the variable values in the URLs, or POST, which does not. Either way, I expect that each page will have a unique URL. However, I do not plan for all pages to have text or image links; many of them will appear only after POSTing a form. My concern is that Google will not be able to spider it; is just posting an ad on such a page enough for Google to grab its content?

Does it make any difference which variable passing method I use for Adsense compatibility? I don't want to build the whole site and then end up with nothing but PSAs.

Thanks.

[david_uk]

I'd try it with a few pages and see what happens. I'm not intp .php, but have a few .asp pages. I recently put an adlinks unit on a page that pulls text out of a database and what happened was that there were no ads on the first page load, but all subsequent loadings of that page had relevant adlinks topics on. So I guess once the page has been spidered it has relevant ads.

I don't know if GET or POST akes a difference. If the bot is using page content, then logically it shouldn't. I have a dynamically generated summary page that lists the articles, and clicking on each one is passed through the querystring EG

summary.asp?search=346

[jurii]

You're right WildGoose, Google won't spider any pages that it can't reach through an ordinary link. So the best advice is to build links.

I would prefer POST over GET, if this creates a new URL for the page. But avoid session ids or any other ids in the URL if possible. AFAIK Google doesn't spider any URL with id= in it.
The shorter the URL is the better.

If you use GET: index.php?xy=1 and index.php?xy=2 are clearly seen as different pages. But don't take too many parameters with you.

[Jafo]

Actually GET would make more sense to Adsense than POST. GET resides totally in the URL. For example, in replying to this post, you see this in the URL:

[webmasterworld.com...]

Specifically:

edposts.cgi?action=reply&forum=89&discussion=13791

What comes after the? is the GET query. These Google can follow. When you POST to a form, the query is not located in the URL, but POSTed to the script/page in question.

You should not use passwords or other sensitive data in the GET query string.