andrewjs18 wrote:

how can I temporarily fix these issues until piwigo is made to work with php 7.2 out of the box?!

rewrite Piwigo?

http://php.net/manual/en/function.create-function.php

Apart from that, the "Deprecated:" messages are not errors but warnings that a function used will cease to exist in a future version of PHP. If you have access to your server's PHP configuration you can temporarily suppress these warning messages by excluding the E_DEPRECATED reporting flag with a statement in /etc/php.ini

error_reporting = E_ALL & ~E_DEPRECATED

Watch out if error_reporting is already set to exclude other flags, for example

error_reporting = E_ALL & ~E_NOTICE

then change that to

error_reporting = E_ALL & ~E_NOTICE & ~E_DEPRECATED

erAck wrote:

excluding the E_DEPRECATED reporting flag with a statement in /etc/php.ini

For completeness, Piwigo overrides the ini setting and the above works only if the Piwigo setting is 0 and rather should be done using LocalFiles Editor updating local/config/config.inc.php adding this

$conf['show_php_errors'] = E_ALL & ~E_DEPRECATED;