This bug was fixed in the package php-dompdf - 0.6.1+dfsg-2ubuntu1
--------------- php-dompdf (0.6.1+dfsg-2ubuntu1) xenial; urgency=medium
* Update to PHP7.0 dependencies (LP: #1565939).
-- Nishanth Aravamudan <email address hidden> Mon, 04 Apr 2016 11:31:14 -0700
This bug was fixed in the package php-dompdf - 0.6.1+dfsg-2ubuntu1
--------------- dfsg-2ubuntu1) xenial; urgency=medium
php-dompdf (0.6.1+
* Update to PHP7.0 dependencies (LP: #1565939).
-- Nishanth Aravamudan <email address hidden> Mon, 04 Apr 2016 11:31:14 -0700