iphone execute php url

Beginner question - I have a full URL (in an NSString variable "temp") which I want the application to execute in the background once the user finishes a flow in my iPhone app. I'm having a bit of a problem getting anything to work.

Basically I need to (1) execute the php URL and (2) capture the response and display it back to the user.

Any help is greatly apprecia开发者_如何学Goted!

Thanks

This has been discussed before. Here is a good tutorial web requests

In essence, you need NSURLConnection.

This answer hold all the clues :)

Object-c/iOS :How to use ASynchronous to get a data from URL?

In brief, something like the following. The keys being:

1. have the url of the content you want
2. use dataWithContentsOfURL to get the actual byes
3. create a file

4. save the image bytes

   If (![fileManager fileExistsAtPath:[destinationAddress stringByAppendingPathComponent:filename]])
   {
     NSError** error;
     NSData* imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:srcAddress] options:NSDataReadingMapped error:error];
     if (imageData != NULL)
    {
       BOOL fileCreated = [fileManager createFileAtPath:destinationAddress contents:imageData attributes:nil];
   
     }
   

   }

Also, use NSURLConnection, if you want to download off the main UI thread (good idea)