iphone上傳圖片到webserver 手機端和服務器（php）

- (IBAction)uploadImage {
	/*
	 turning the image into a NSData object
	 getting the image back out of the UIImageView
	 setting the quality to 90
	*/
	NSData *imageData = UIImageJPEGRepresentation(image.image, 90);
	// setting up the URL to post to
	NSString *urlString = @"http://iphone.zcentric.com/test-upload.php";

	// setting up the request object now
	NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
	[request setURL:[NSURL URLWithString:urlString]];
	[request setHTTPMethod:@"POST"];

	/*
	 add some header info now
	 we always need a boundary when we post a file
	 also we need to set the content type

	 You might want to generate a random boundary.. this is just the same
	 as my output from wireshark on a valid html post
	*/
	NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"];
	NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
	[request addValue:contentType forHTTPHeaderField: @"Content-Type"];

	/*
	 now lets create the body of the post
	*/
	NSMutableData *body = [NSMutableData data];
	[body appendData:[[NSString stringWithFormat:@"/r/n--%@/r/n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
	[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=/"userfile/"; filename=/"ipodfile.jpg/"/r/n"] dataUsingEncoding:NSUTF8StringEncoding]];
	[body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream/r/n/r/n"] dataUsingEncoding:NSUTF8StringEncoding]];
	[body appendData:[NSData dataWithData:imageData]];
	[body appendData:[[NSString stringWithFormat:@"/r/n--%@--/r/n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
	// setting the body of the post to the reqeust
	[request setHTTPBody:body];

	// now lets make the connection to the web
	NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
	NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

	NSLog(returnString);
}

服務器：

$uploaddir = './uploads/';
$file = basename($_FILES['userfile']['name']);
$uploadfile = $uploaddir . $file;

if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
        echo "http://iphone.zcentric.com/uploads/{$file}";
}