Passing Data From iPhone app to PHP file

Question

What is the best way to pass data input from an iphone app to a php file?

Answer 1

A NSURLRequest POST or GET call to the php file.

- (void) <functionname>:<parameters> {   
    NSString *urlString = [NSString stringWithFormat:@"<url with GET>",<parameters>];
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];  NSError * e; 
    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&e];
    return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; 
}

Answer 2

If you're asking about posting the data to a web server, I'd recommend using ASIHTTPRequest to HTTP POST the data to the server in Json format. You'd then use the PHP function json_decode() to decode the data.

Json-framework is a good Json framework for the iPhone.

Answer 3

I like to simply make a URLRequest, set its method to @"POST", and using a simple xml just send it as the body of the request. Finally with a NSURLConnection and its delegate methods you verify and add more actions depending on the method being called at a given time.

With the connection:(NSURLConnection *)connection didReceiveData:(NSData *)data delegate method you can handle a response from your php side.

But if all you are doing is receiving something like an XML, you can just make the request to the url and send it to a parser; in this case I usually use NSXMLParser.