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I am trying to get an introduction to serving files to the iphone. I have watched tutorials on getting files from sites like Flickr and twitter. I need a tutorial to show me how to set up the site that is feeding that information. Most of those sites send you a json file. Can I just keep a dynamic file on a server using php?
PHP has some great json functions. See json_encode, which takes a PHP structure and converts it to a json string, and json_decode, which does the opposite. Make sure you set a
Content-type: application/jsonheader, echo the result of json_encode, and your iPhone app should be able to read it. Similarly, you can use json_decode to read JSON data that has been sent to your PHP script using GET or POST (preferably the latter).