My favorite Code Style Rules for php-cs-fixer

.php_cs

<?php

$rules = [
    '@PSR2' => true,

    // Additional Non-PSR2 rules
    'array_syntax' => ['syntax' => 'short'],
    'binary_operator_spaces' => ['align_double_arrow' => true],
    'blank_line_after_opening_tag' => true,
    'blank_line_before_return' => true,
    'cast_spaces' => true,
    'concat_space' => ['spacing' => 'one'],
    'function_typehint_space' => true,
    'include' => true,
    'linebreak_after_opening_tag' => true,
    'list_syntax' => ['syntax' => 'short'],
    'lowercase_cast' => true,
    'method_separation' => true,
    'no_blank_lines_after_class_opening' => true,
    'no_blank_lines_before_namespace' => true,
    'no_empty_statement' => true,
    'no_extra_consecutive_blank_lines' => true,
    'no_unused_imports' => true,
    'no_useless_else' => true,
    'no_useless_return' => true,
    'no_whitespace_before_comma_in_array' => true,
    'no_whitespace_in_blank_line' => true,
    'normalize_index_brace' => true,
    'not_operator_with_successor_space' => true,
    'ordered_class_elements' => true,
    'ordered_imports' => ['sortAlgorithm' => 'length'],
    'self_accessor' => true,
    'short_scalar_cast' => true,
    'single_quote' => true,
    'ternary_operator_spaces' => true,
];

$finder = PhpCsFixer\Finder::create()->in(__DIR__);

return PhpCsFixer\Config::create()
    ->setRules($rules)
    ->setFinder($finder)
    ->setUsingCache(true)
    ->setCacheFile(__DIR__.'/.php_cs.cache')
    ;