.php_cs

<?php
$src = __DIR__ . '/src';
$tests = __DIR__ . '/tests';
$cache = __DIR__ . '/.php_cs.cache';

$finder = PhpCsFixer\Finder::create()
    ->in([$src, $tests])
    ->name('*.php')
    ->ignoreDotFiles(true)
    ->ignoreVCS(true)
;

return PhpCsFixer\Config::create()
    ->setCacheFile($cache)
    ->setRules(getRules())
    ->setFinder($finder)
    ->setRiskyAllowed(true)
;

function getRules() {
    return [
        '@PSR2' => true,
        '@PHP71Migration' => true,
        'array_syntax' => [
            'syntax' => 'short',
        ],
        'binary_operator_spaces' => [
            'align_double_arrow' => false,
            'align_equals' => false,
        ],
        'blank_line_after_opening_tag' => true,
        'blank_line_before_return' => true,
        'cast_spaces' => true,
        'class_keyword_remove' => false,
        'combine_consecutive_unsets' => true,
        'concat_space' => [
            'spacing' => 'one',
        ],
        'declare_equal_normalize' => [
            'space' => 'none',
        ],
        'declare_strict_types' => true,
        'dir_constant' => true,
        'doctrine_annotation_braces' => true,
        'doctrine_annotation_indentation' => true,
        'doctrine_annotation_spaces' => true,
        'ereg_to_preg' => true,
        'function_to_constant' => true,
        'function_typehint_space' => true,
        'general_phpdoc_annotation_remove' => false,
        'hash_to_slash_comment' => true,
        'header_comment' => false,
        'heredoc_to_nowdoc' => false,
        'include' => true,
        'is_null' => true,
        'linebreak_after_opening_tag' => true,
        'list_syntax' => [
            'syntax' => 'short',
        ],
        'lowercase_cast' => true,
        'mb_str_functions' => false,
        'magic_constant_casing' => true,
        'method_separation' => true,
        'modernize_types_casting' => true,
        'native_function_casing' => true,
        'native_function_invocation' => false,
        'new_with_braces' => true,
        'no_alias_functions' => true,
        'no_blank_lines_after_class_opening' => true,
        'no_blank_lines_after_phpdoc' => true,
        'no_blank_lines_before_namespace' => false,
        'no_empty_comment' => true,
        'no_empty_phpdoc' => true,
        'no_empty_statement' => true,
        'no_extra_consecutive_blank_lines' => [
            'break',
            'continue',
            'curly_brace_block',
            'extra',
            'parenthesis_brace_block',
            'return',
            'square_brace_block',
            'throw',
            'use',
            'useTrait',
        ],
        'no_leading_import_slash' => true,
        'no_leading_namespace_whitespace' => true,
        'no_mixed_echo_print' => [
            'use' => 'echo',
        ],
        'no_multiline_whitespace_around_double_arrow' => true,
        'no_multiline_whitespace_before_semicolons' => true,
        'no_php4_constructor' => true,
        'no_short_bool_cast' => true,
        'no_short_echo_tag' => true,
        'no_singleline_whitespace_before_semicolons' => true,
        'no_spaces_around_offset' => true,
        'no_trailing_comma_in_list_call' => true,
        'no_trailing_comma_in_singleline_array' => true,
        'no_unneeded_control_parentheses' => true,
        'no_unreachable_default_argument_value' => 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,
        'non_printable_character' => true,
        'normalize_index_brace' => true,
        'not_operator_with_space' => false,
        'not_operator_with_successor_space' => false,
        'object_operator_without_whitespace' => true,
        'ordered_class_elements' => false,
        'ordered_imports' => true,
        'php_unit_construct' => true,
        'php_unit_dedicate_assert' => false,
        'php_unit_fqcn_annotation' => true,
        'php_unit_strict' => true,
        'php_unit_test_class_requires_covers' => false,
        'phpdoc_add_missing_param_annotation' => [
            'only_untyped' => false,
        ],
        'phpdoc_align' => true,
        'phpdoc_annotation_without_dot' => false,
        'phpdoc_indent' => true,
        'phpdoc_inline_tag' => true,
        'phpdoc_no_access' => true,
        'phpdoc_no_alias_tag' => [
            'type' => 'var',
        ],
        'phpdoc_no_empty_return' => true,
        'phpdoc_no_package' => true,
        'phpdoc_no_useless_inheritdoc' => true,
        'phpdoc_return_self_reference' => true,
        'phpdoc_order' => true,
        'phpdoc_scalar' => true,
        'phpdoc_separation' => true,
        'phpdoc_single_line_var_spacing' => true,
        'phpdoc_summary' => true,
        'phpdoc_to_comment' => false,
        'phpdoc_trim' => true,
        'phpdoc_types' => true,
        'phpdoc_var_without_name' => true,
        'pow_to_exponentiation' => true,
        'pre_increment' => true,
        'protected_to_private' => true,
        'psr0' => false,
        'psr4' => true,
        'random_api_migration' => false,
        'return_type_declaration' => true,
        'self_accessor' => true,
        'semicolon_after_instruction' => true,
        'short_scalar_cast' => true,
        'silenced_deprecation_error' => false,
        'simplified_null_return' => false,
        'single_blank_line_before_namespace' => true,
        'single_quote' => true,
        'space_after_semicolon' => true,
        'standardize_not_equals' => true,
        'strict_comparison' => false,
        'strict_param' => false,
        'ternary_operator_spaces' => true,
        'ternary_to_null_coalescing' => true,
        'trailing_comma_in_multiline_array' => true,
        'trim_array_spaces' => true,
        'unary_operator_spaces' => true,
        'visibility_required' => [
            'const',
            'property',
            'method',
        ],
        'whitespace_after_comma_in_array' => true,
    //  'void_return' => true,
    ];
}