Display thumbnailPhoto from Active Directory in PHP

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This seems to be a JPEG-File, so you should be able to send that data together with the appropriate mime-type to the browser. It should be possible to output that image with something like:

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

But it might also be possible to save files of any image format into that thumbnailPhoto attribute. Therefore, I would put the content into a temporary file that will then be served directly from the server. You will need to pass the file through finfo to get the correct mime-type.

So you might do something like this:

$tempFile = tempnam(sys_get_temp_dir(), 'image');
file_put_contents($tempFile, $imageString);
$finfo = new finfo(FILEINFO_MIME_TYPE);
$mime  = explode(';', $finfo->file($tempFile));
echo '<img src="https://stackoverflow.com/questions/16937863/data:" . $mime[0] . ';base64,' . base64_encode($imageString) . '"/>';

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