installer: PHP 7.2 compatibility fixes #13326
Merged
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Overview
On PHP 7.2, the installer generates PHP warnings: "Warning: count(): Parameter must be an array or an object that implements Countable in [...]".
Reported: https://chat.civicrm.org/civicrm/pl/s9ehffmx9pdhjeq4azxnkmo85e
Before
warning
After
no warning
Technical Details
The variables are not properly initialized, but I didn't feel like messing around more than necessary in this deprecated code.