title: PHP imagejpeg save file doesn't work
body: <p>I have php code to trim white outer border and resize. When I use imagejpeg($newImage) to output it the browser it works fine but when I try to save to using imagejpeg($newImage, 'test.jpg') it doesn't get saved anywhere. Help please?</p>
  
  <pre><code>$im = imagecreatefromjpeg($src);
  $bg = imagecolorallocate($im,$rgb,$rgb,$rgb);
  
  
   // Set the header and output image.
  header('Content-type: image/jpeg');
  imagetrim($im,$bg);
  $width = imagesx($im);
  $height = imagesy($im);
  $newHeight = $height * $newWidth/$width;
  
  $newImage = imagecreatetruecolor($newWidth, $newHeight);
  imagecopyresampled($newImage, $im, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height); 
  //imagejpeg($newImage);
  //header('Content-Type: image/jpeg');
  imagejpeg($newImage, 'test.jpg');
  imagejpeg($newImage);
  imagedestroy($im);
  imagedestroy($newImage);
  </code></pre>