PHP Fatal error:  Cannot declare class PHPCompatibility\Sniffs\PHP\RequiredOptionalFunctionParametersSniff, because the name is already in use in /home/sagar/Documents/Coding-Standards/PHPCompatibility/PHPCompatibility/Sniffs/PHP/RequiredOptionalFunctionParametersSniff.php on line 236
PHP Stack trace:
PHP   1. {main}() /home/sagar/vendor/squizlabs/php_codesniffer/bin/phpcs:0
PHP   2. PHP_CodeSniffer\Runner->runPHPCS() /home/sagar/vendor/squizlabs/php_codesniffer/bin/phpcs:18
PHP   3. PHP_CodeSniffer\Runner->init() /home/sagar/vendor/squizlabs/php_codesniffer/src/Runner.php:70
PHP   4. PHP_CodeSniffer\Ruleset->__construct() /home/sagar/vendor/squizlabs/php_codesniffer/src/Runner.php:294
PHP   5. PHP_CodeSniffer\Ruleset->registerSniffs() /home/sagar/vendor/squizlabs/php_codesniffer/src/Ruleset.php:217
PHP   6. PHP_CodeSniffer\Autoload::loadFile() /home/sagar/vendor/squizlabs/php_codesniffer/src/Ruleset.php:1103