2.4.0 PHP 8 support
support PHP 8 (#404) * added php8 to travis tests updated travis file for php 8.0 change camel case update get class with reflection class update getName from reflection fix phpstan added composer update to travis file update cs-fixer script updaye for builtIn reflection function removed php 7.2 using snake case for test files * removed if condition * added test and if condition to check if there is no params * improve code * removed unused use statement