Upload imagefile from iOS device with objective-c to an PHP - ios

Question

I want to upload an image from my iphone (from imagepicker) to my server (with an PHP-script). But how do I get the image from the imagepicker / ImageView to the script for upload?
Here is my database connection code:
NSString *brugernavn = [[NSUserDefaults standardUserDefaults] stringForKey:kBrugernavn];
NSString *maaltid = self.maaltid.text;
//NSString *rating = [segmentedControl titleForSegmentAtIndex:[segmentedControl selectedSegmentIndex]];
//NSString *rating = self.rating;
NSString *kommentar = self.kommentar.text;
NSString *place = self.place.text;
NSData *data = [NSData dataWithContentsOfFile:filepath];
NSMutableString *urlString = [[NSMutableString alloc] initWithFormat:#"brugernavn=%#&&maaltid=%#&&kommentar=%#&&place=%#&&thumbnail=%#&&submit",brugernavn,maaltid,kommentar,place,data];
[urlString appendFormat:#"%#", data];
NSData *postData = [urlString dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSString *baseurl = #"http://example.com/upload.php";
NSURL *url = [NSURL URLWithString:baseurl];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
[urlRequest setHTTPMethod: #"POST"];
[urlRequest setValue:postLength forHTTPHeaderField:#"Content-Length"];
[urlRequest setValue:#"application/x-www-form-urlencoded"
forHTTPHeaderField:#"Content-Type"];
[urlRequest setHTTPBody:postData];
NSURLConnection *connection = [NSURLConnection connectionWithRequest:urlRequest delegate:self];
[connection start];
And here is my code for the imagepicker:
// KAMERA - Aktiverer kameraet ved tryk på knap
- (IBAction)useCamera:(id)sender {
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.mediaTypes = #[(NSString *) kUTTypeImage];
imagePicker.allowsEditing = NO;
[self presentViewController:imagePicker animated:YES completion:nil];
_newMedia = YES;
}
}
// KAMERA - Aktiverer kamerarullen ved tryk på knap
- (IBAction)useCameraRoll:(id)sender {
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum])
{
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.SourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePicker.mediaTypes = #[(NSString *) kUTTypeImage];
imagePicker.allowsEditing = NO;
[self presentViewController:imagePicker animated:YES completion:nil];
_newMedia = NO;
}
}
// KAMERA - Sender valgt billede til imageView
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *mediaType = info[UIImagePickerControllerMediaType];
[self dismissViewControllerAnimated:YES completion:nil];
if([mediaType isEqualToString:(NSString *)kUTTypeImage])
{
UIImage *image = info[UIImagePickerControllerOriginalImage];
_imageView.image = image;
if (_newMedia)
UIImageWriteToSavedPhotosAlbum(image, self, #selector(image:finishedSavingWithError:contextInfo:), nil);
} else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie])
{
// Code here to support video if enabled
}
}
And here the imageView from my .h-file:
#property (strong, nonatomic) IBOutlet UIImageView *imageView;
And here is the defination of my upload-field on PHP:
$_FILES['thumbnail']['name']
The user should take a picture og choose from the cameraroll and then write some info like title, description, etc. for the upload and then upload the image and info the server with the PHP-script.
Please help me :o)

Answer 1

It has been a while since I used this, but it worked then :)
NSData *imageData = UIImagePNGRepresentation(bilden);
NSString *filename = [NSString stringWithFormat:#"bild%d%#", bildnr,#".png"];
NSString *urlString = #"http://extranet.pool.se/stockholmsmassan/rita_pa_vaggen/sparabild.php";
// setting up the request object now
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
NSString *boundary = #"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",boundary];
[request addValue:contentType forHTTPHeaderField: #"Content-Type"];
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"userfile\"; filename=\"%#\"\r\n", filename] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Type: image/png\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];
// second parameter information
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[#"Content-Disposition: form-data; name=\"epost\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[epost dataUsingEncoding:NSUTF8StringEncoding]];
[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
NSURLResponse* response;
NSError* error;
NSData* result = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *returnString = [[NSString alloc] initWithData:result encoding:NSUTF8StringEncoding];
NSLog(#"return: %#",returnString);