* Fix int<0> typing to int<0,0> for phpstan
* Fix phpdoc for phpstan
* Fix phpdoc for phpstan
* Qual: Several phpstan notice fixes
* Fix phpdoc
* Qual: totalpaid is never null, remove null test
* improve phpdoc typing
* Also return null to statisfy phpstan
* Allow null value for $var
* object->Object to make it meaningful
* Type EvalMathStack properties
* Comment out unused private methods (phpstan)
* Changes for phpstan (return values, phpdoc, code)
* Change order of tests for phpstan
* phpdoc object to Object for correct typing
* Typing hing for phpstan
* UPdate test for phpstan
* Change phpdoc position for phpstan
* Update phpdoc for phpstan
This needs further improvement
* Change $op to $ope to fix phpstan
* Update sqlite3.class.php
---------
Co-authored-by: Laurent Destailleur <eldy@destailleur.fr>
htdocs/core/class/evalmath.class.php 389 Method EvalMath::pfx() should return string but returns bool.
htdocs/core/class/evalmath.class.php 392 Method EvalMath::pfx() should return string but returns bool.
htdocs/core/class/evalmath.class.php 406 Method EvalMath::pfx() should return string but returns bool.
htdocs/core/class/evalmath.class.php 422 Method EvalMath::pfx() should return string but returns bool.
htdocs/core/class/evalmath.class.php 434 Method EvalMath::pfx() should return string but returns bool.
htdocs/core/class/evalmath.class.php 448 Method EvalMath::pfx() should return string but returns bool.
htdocs/core/class/evalmath.class.php 454 Method EvalMath::pfx() should return string but returns bool.
