通过https从Dropbox中删除PHP中的图像

Question

I have a strange situation with PHP working differently from HTML. I'm not a web programmer, just messing around. In HTML my images appear fine, in PHP the images are broken. And only public images from my Dropbox https server are broken, ones from a http server work.

As an example, here are two files on my localhost, abc.html and def.php. They try to display two images, one pointing to my https image, and another pointing to the Google logo.

abc.html:

<img src='https://photos-1.dropbox.com/i/l/EyvpAUN99vGCmWKqw-ywSYXY1L8dPhkloKA5i9I--NM'>
<img src='http://www.google.co.uk/intl/en_uk/images/logo.gif'>

def.php:

<?php
echo "<img src='https://photos-1.dropbox.com/i/l/EyvpAUN99vGCmWKqw-ywSYXY1L8dPhkloKA5i9I--NM'>";
echo "<img src='http://www.google.co.uk/intl/en_uk/images/logo.gif'>";
exit;

Browsing to abc.html shows both images perfectly. Browsing to def.php only shows the Google logo and the other image is broken.

It doesn't work on Firefox however someone told me it works on Opera.

Ideas please :)

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Edit: def.php outputs this:

<img src='https://photos-1.dropbox.com/i/l/EyvpAUN99vGCmWKqw-ywSYXY1L8dPhkloKA5i9I--NM'><img src='http://www.google.co.uk/intl/en_uk/images/logo.gif'>

Answer 1

I'd recommend installing FireBug to see what the return response from the server is. You might find that DropBox is refusing to serve requests for images with referrals from files ending with certain extensions, e.g. .php.

This might explain the duplicate behaviour with the plain HTTP too.