将带有image和nsstrings的表单上传到PHP文件

I am trying to send form data which has a image and 2 nsstrings to a php file and I want to send uiimage.image with the name of "document" and one nsstring with the name of "name" and another nsstring with the name of "userid".

Here is my code so far.

    NSData *imageData = UIImageJPEGRepresentation(Myimage.image, 1.0);
                if (imageData != nil)
                {
                    NSString *filename = [NSString stringWithFormat:@"%@",name];      //set name here
                    NSLog(@"%@", filename);
                    NSString *urlString = @"http://URL/upload.php";
                    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
                    [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:@"
--%@
",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"filenames\"

"] dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:[filename dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:[[NSString stringWithFormat:@"
--%@
",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:[@"Content-Disposition: form-data; name=\"userfile\"; filename=\".jpg\"
" dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:[@"Content-Type: application/octet-stream

" dataUsingEncoding:NSUTF8StringEncoding]];
                    [body appendData:[NSData dataWithData:imageData]];
                    [body appendData:[[NSString stringWithFormat:@"
--%@--
",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
                    [request setHTTPBody:body];
                    NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
                    NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
                    NSLog(@"%@", returnString);
                    NSLog(@"finish");
}

Try using Afnetworking 3.0

NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"your server url" parameters:@{@"parameter_1":@"string 1",@"parameter_2":@"string 2"} constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
            if (image) {
                [formData appendPartWithFileData:UIImageJPEGRepresentation(image, 0.8) name:imagename fileName:@"recipeImage.jpg" mimeType:@"image/jpeg"];
            }

        }error:nil];

        AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
        manager.responseSerializer = [AFJSONResponseSerializer serializer];

        NSURLSessionUploadTask *uploadTask;
        uploadTask = [manager
                      uploadTaskWithStreamedRequest:request
                      progress:^(NSProgress * _Nonnull uploadProgress) {
                          dispatch_async(dispatch_get_main_queue(), ^{
                          });
                      }
                      completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
                          if (error) {
                              NSLog(@"Error: %@", [[NSString alloc]initWithData:[[error valueForKey:@"userInfo"] valueForKey:@"com.alamofire.serialization.response.error.data"] encoding:NSUTF8StringEncoding]);

                          } else {
                              NSLog(@"%@",responseObject);// your response here
                              callback(YES,responseObject);
                          }
                      }];

        [uploadTask resume];

NSData *dataImage = UIImagePNGRepresentation(yourImage);

NSString *imageBase64 = [dataImage base64forData];

- (NSString*)base64forData
{
    const uint8_t* input = (const uint8_t*)[self bytes];
    NSInteger Datalength = [self length];

    static char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

    NSMutableData* data = [NSMutableData dataWithLength:((Datalength + 2) / 3) * 4];
    uint8_t* output = (uint8_t*)data.mutableBytes;

    NSInteger i;
    for (i=0; i < Datalength; i += 3) {
        NSInteger value = 0;
        NSInteger j;
        for (j = i; j < (i + 3); j++) {
            value <<= 8;

            if (j < Datalength) {
                value |= (0xFF & input[j]);
            }
        }

        NSInteger theIndex = (i / 3) * 4;
        output[theIndex + 0] =                    table[(value >> 18) & 0x3F];
        output[theIndex + 1] =                    table[(value >> 12) & 0x3F];
        output[theIndex + 2] = (i + 1) < Datalength ? table[(value >> 6)  & 0x3F] : '=';
        output[theIndex + 3] = (i + 2) < Datalength ? table[(value >> 0)  & 0x3F] : '=';
    }

    return [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];


}