Description:
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https://www.php.net/manual/en/configuration.file.php

I don't see anywhere a clarification of whether a php.ini file can/cannot contain:

* arithmetic expressions.
  E.g. session.gc_maxlifetime = 4 * 60 * 60;

* assignment to a variable, that is then used to set other variables.
  E.g. $oneHourInSeconds = 60 * 60;
       session.gc_maxlifetime = 4 * $oneHourInSeconds;

* both single and double quoting of strings.
  E.g. are both 'fred' and "fred" valid strings.


Test script:
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Not relevant