PHP - 将HTML附加到Image / Jpeg响应

Question

The code below:

if($file = $mongoGridFS->findOne(array('_id' => new MongoId($fileId)))) 
{
    $fileName = $file->file['filename'];
    $fileBytes = $file->getBytes();
    header('Content-type: image/jpeg');
    header("Content-Length: " . strlen($fileBytes));
    ob_clean();
    echo $fileBytes;
}

Returns the Response from Mongo as .jpg file.

How to include to this response some html? eg.

<div id='container'>
  <img ... /> <!-- image generated by script and stored in $fileBytes -->
  <br>
  <span class='description'>This is image</span>
</div>

I want not to make <img src='...'> linked to saved file on filesystem.

Is this possible?

Answer 1

You cannot return two resources within the same http response. What you can do is to inline the image data (see Embedding Base64 Images for more details like browser compatibility and other possible issues with inline images). Something like:

<img src="data:image/jpeg;base64,<?=base64_encode($fileBytes)?>" />