Uploading image to server in iphone application

Question

I want upload image to sever in iphone app I am using following code for PHP

but using this code i get error displayed on page when i run localhost/upload.php;

Answer 1

if you think error in php code then first try this print_r($_FILES); and see what did you get in the $_FILES['userfile']

Answer 2

try this and also did you check in php by print_r($_FILES);

                    NSString *urlString = @"http://localhost/upload.php";

                    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString] cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:60];
                    [request setHTTPMethod:@"POST"];

                    NSString *boundary = [NSString stringWithString:@"---------------------------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:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:imageData];
                    [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
                    [request setHTTPBody:body];

                    NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
                    NSString *returnString = [[[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding] autorelease];