The phpcs-symfony project builds a PHP_CodeSniffer standard for the symfony framework and projects built using the symony framework.

If you want to install the standard you have to copy the PHP folder into the folder where PHP_CodeSniffer is installed. Usually this is /usr/share/php/ if PHP_Codesniffer is installed via PEAR.

After installing the standard you are able to use it with the phpcs standard:

phpcs --standard=Symfony <files>

Only for PHP_CodeSniffer-1.3.0a1 and above