ImageMagick - Fatal error: Class 'imagick' not found


According to a lot of wiki pages it looks like ImageMagick is meant to be installed for all domains. I’ve been writing a PHP script that uses it to turn PDFs into image sequences but when I try to test it on DH I get:

Fatal error: Class ‘imagick’ not found in /home/etc.etc.

<?php $image = new imagick('sample.pdf'); // testing Has something changed recently? How can I get this working? Thanks

What version of PHP are you using?