.php_cs

<?php
$header = <<<'EOF'
@link https://www.yiiframework.com/
@copyright Copyright (c) 2008 Yii Software LLC
@license https://www.yiiframework.com/license/
EOF;

$finder = PhpCsFixer\Finder::create()
    ->in(__DIR__ . '/src')
;

return PhpCsFixer\Config::create()
    ->setRiskyAllowed(true)
    ->setRules([
        '@PSR2' => true,
        'array_syntax' => [
            'syntax' => 'short',
        ],
        'binary_operator_spaces' => [
            'align_double_arrow' => false,
            'align_equals' => false,
        ],
        'blank_line_after_opening_tag' => true,
        'cast_spaces' => true,
        'concat_space' => [
            'spacing' => 'one',
        ],
        'dir_constant' => true,
        'ereg_to_preg' => true,
        'function_typehint_space' => true,
        'hash_to_slash_comment' => true,
        'include' => true,
        'heredoc_to_nowdoc' => true,
        'is_null' => [
            'use_yoda_style' => false,
        ],
        'linebreak_after_opening_tag' => true,
        'lowercase_cast' => true,
        'magic_constant_casing' => true,
        'modernize_types_casting' => true,
        'native_function_casing' => true,
        'new_with_braces' => true,
        'no_alias_functions' => true,
        'no_blank_lines_after_class_opening' => true,
        'no_blank_lines_after_phpdoc' => true,
        'no_empty_comment' => true,
        'no_empty_phpdoc' => true,
        'no_empty_statement' => true,
        'no_extra_consecutive_blank_lines' => [
            'tokens' => [
                'break',
                'continue',
                'return',
                'throw',
                'use',
                'use_trait',
                'parenthesis_brace_block',
                'square_brace_block',
            ],
        ],
        'no_leading_import_slash' => true,
        'no_leading_namespace_whitespace' => true,
        'no_mixed_echo_print' => true,
        'no_multiline_whitespace_around_double_arrow' => true,
        'no_multiline_whitespace_before_semicolons' => true,
        'no_php4_constructor' => true,
        'no_short_bool_cast' => 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_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,
        'object_operator_without_whitespace' => true,
        'ordered_imports' => [
            'sortAlgorithm' => 'alpha',
            'importsOrder' => [
                'const',
                'function',
                'class',
            ],
        ],
        'php_unit_construct' => true,
        'php_unit_dedicate_assert' => true,
        'php_unit_fqcn_annotation' => true,
        'phpdoc_add_missing_param_annotation' => true,
        'phpdoc_indent' => true,
        'phpdoc_no_access' => true,
        'phpdoc_no_empty_return' => true,
        'phpdoc_no_package' => true,
        'phpdoc_no_useless_inheritdoc' => true,
        'phpdoc_return_self_reference' => true,
        'phpdoc_scalar' => true,
        'phpdoc_single_line_var_spacing' => true,
        'phpdoc_summary' => true,
        'phpdoc_trim' => true,
        'phpdoc_types' => true,
        'phpdoc_var_without_name' => false,
        'protected_to_private' => true,
        'psr4' => true,
        'self_accessor' => true,
        'short_scalar_cast' => true,
        'single_blank_line_before_namespace' => true,
        'single_quote' => true,
        'standardize_not_equals' => true,
        'ternary_operator_spaces' => true,
        'trailing_comma_in_multiline_array' => true,
        'trim_array_spaces' => true,
        'unary_operator_spaces' => true,
        'whitespace_after_comma_in_array' => true,
        'header_comment' => [
            'header' => $header,
            'commentType' => 'PHPDoc',
            'separate' => 'bottom',
        ],
    ])
    ->setFinder($finder)
;