title: How do I set the default 'save-as' name for an image generated in PHP?
body: <p>this is my code.</p>
  
  <pre><code>&lt;?php
  function generate_card($card_number='',$card_price='',$card_expire='',$image_path='',$font_path)
  {
      // store image on variable //
      $image = imagecreatefrompng($image_path);
  
      // some text color
      $color = imagecolorallocate($image, 255, 255, 0);
  
      // print card price //
      imagettftext($image, 15, 0, 200, 40, $color, $font_path, $card_price);
      // print card number //
      imagettftext($image, 15, 0, 15, 85, $color, $font_path, $card_number);
      // print expiry date //
      imagettftext($image, 12, 0, 145, 155, $color, $font_path, $card_expire);
  
      header('Content-type:image/png');
      imagepng($image);
      imagedestroy($image); 
  }
  generate_card('1234 5678 9101 1121','$200','12/13','card.png','verdana.ttf');
  ?&gt;
  </code></pre>
  
  <p>I am generating visa gift cards, image also created and displayed on the page. But my problem is when i want to save this image in Mozilla it gives the "page_name.png" and in IE it gives me "Untitled".
  How can i give my own name like "visa_gift_01.png" while saving.</p>