title: NSURLRequest setHttpBody
body: <p>I got a wrong post(php:echo $_POST) like below:
  <strong>Array (     [email"aa@qq_com] => -----------------------------14737809831466499882746641449 Content-Disposition: form-data; name="password" c8837b23ff8aaa8a2dde915473ce0991  )</strong> </p>
  
  <p>my code:</p>
  
  <pre><code>// set header value ,   some random text that will never occur in the body  
  NSString *boundary = @"---------------------------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];              //  email part         
  [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];        
  [body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"email\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];   
  [body appendData:[anEmail dataUsingEncoding:NSUTF8StringEncoding]];     
  [body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];          //  password part     [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];     
  [body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"password\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];    
  [body appendData:[aPassword dataUsingEncoding:NSUTF8StringEncoding]];     
  [body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];          //  image part     [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];        
  [body appendData:[[NSString stringWithFormat: @"Content-Disposition: form-data; name=\"uploadingImage\"; filename=%@\r\n", anImageName]                        dataUsingEncoding:NSUTF8StringEncoding]];    
  [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];   
  [body appendData:[NSData dataWithData:aFileData]];     
  [body appendData:[@"\r\n" 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  
  NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
  </code></pre>