A default php-cs configuration

.php_cs.php

<?php

return Symfony\CS\Config\Config::create()
    ->level(Symfony\CS\FixerInterface::SYMFONY_LEVEL)
    ->fixers([
        'concat_with_spaces',
        'multiline_spaces_before_semicolon',
        'short_array_syntax',
        'newline_after_open_tag',
        'single_quote',
        'ordered_use',
        'phpdoc_order',
        '-remove_lines_between_uses',
        '-empty_return',
        '-phpdoc_params',
        '-phpdoc_short_description',
        'echo_to_print',
        'blankline_after_open_tag',
    ])
    ->finder(
        Symfony\CS\Finder\DefaultFinder::create()
            ->in('src/')
    );