PHP warning message showing in error_log: "function '1' not found..."

PHP Warning: Unknown: function '1' not found or invalid function name in Unknown on line 0

The fix I’ve been doing to get around this is running apachectl graceful a couple times per day … but that is very kludgey.

CentOS 7.3, 64G RAM, Apache 2.4, PHP 5.6, Nextcloud 12.

Fresh install of Nextcloud as of last week.

Aso trying to figure it out on Reddit:

found after much spelunking, and turned zlib output off

loads like a champ now

wonder if that was perhaps colliding with the SSL settings to disable compression in the VirtualHost config?