www/owncloud depends on php56, which is deprecated. Please consider to flavorize the port, much like www/nextcloud is. For reference, nextcloud was flavorized in SVN ports-revision 468708. This was tracked in #227510 and reviewd on https://reviews.freebsd.org/D15235. Thank you.
A commit references this bug: Author: sunpoet Date: Wed Jan 30 19:22:35 UTC 2019 New revision: 491651 URL: https://svnweb.freebsd.org/changeset/ports/491651 Log: Add PHP flavor - Cosmetic change PR: 235116 Requested by: Christian Ludwig <chrissicool@gmail.com> Changes: head/www/owncloud/Makefile
Committed. Thanks!