This section shows php lint problems in the code detected by php -l PHP Fatal error: Cannot declare class ArithmeticError, because the name is already in use in /blocks/qrcode/thirdparty/vendor/symfony/polyfill-php70/Resources/stubs/ArithmeticError.php on line 5 PHP Fatal error: Cannot declare class AssertionError, because the name is already in use in /blocks/qrcode/thirdparty/vendor/symfony/polyfill-php70/Resources/stubs/AssertionError.php on line 5 PHP Fatal error: Cannot declare class DivisionByZeroError, because the name is already in use in /blocks/qrcode/thirdparty/vendor/symfony/polyfill-php70/Resources/stubs/DivisionByZeroError.php on line 5 PHP Fatal error: Cannot declare class Error, because the name is already in use in /blocks/qrcode/thirdparty/vendor/symfony/polyfill-php70/Resources/stubs/Error.php on line 5 PHP Fatal error: Cannot declare class ParseError, because the name is already in use in /blocks/qrcode/thirdparty/vendor/symfony/polyfill-php70/Resources/stubs/ParseError.php on line 5 PHP Fatal error: Cannot declare class TypeError, because the name is already in use in /blocks/qrcode/thirdparty/vendor/symfony/polyfill-php70/Resources/stubs/TypeError.php on line 5 This section shows the coding style problems detected in the code by phpcs This section shows the coding style problems detected in the code by eslint This section shows CSS problems detected by stylelint This section shows the phpdocs problems detected in the code by local_moodlecheck This section shows problems detected with the handling of upgrade savepoints This section shows problems detected with the modification of third party libraries This section shows files built by grunt and not commited This section shows problems detected by shifter This section shows problems detected in mustache templates