How to set up a database and API web page to accept POST updates from iPhone?

I am developing an iPhone开发者_Python百科 app, which now can update Twitter account with GPS coordinates in real-time, by the Twitter API link: http://username:password@twitter.com/statuses/update.xml , and I am looking at how to make my own database to accept updates from iPhone, via a similar API page.

It seems a .php page can serve as the API, and MySQL can serve as the database.

What are the good ways of doing it? Any template code and tutorial please?

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Try one of these:

http://www.webresourcesdepot.com/how-to-create-an-api-10-tutorials/

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Thanks for the answer. I found the php page just need code like

$userid=$_POST["userid"];
$companyid=$_POST["companyid"];
$phoneid=$_POST["phoneid"];

to receive POST from the iphone app.