Starting with Zend Server version 2019.0.0, multiple versions of PHP are available (PHP 7.1.x, PHP 7.2.x and PHP 7.3.x), and the active version can be changed whenever desired either through the User Interface (UI) or a menu option. The location of the "active" php.ini file is incorrectly defined in the fastcgi.conf file, which prevents Zend Server from finding the correct location of the active version of php.ini when the version of PHP has been changed.
This can cause various issues in applications when the correct "active" version cannot be located.
This article will describe how to fix the fastcgi.conf file so that Zend Server is able to locate the "active" version of PHP when running the deployed applications.
The other issue you may encounter is that the value of the ENV variable INSTALLATION_UID