.php-cs-fixer.php

<?php

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

$config = new PhpCsFixer\Config();
return $config->setRules([
        '@PSR12' => true,
        'array_syntax' => ['syntax' => 'short'],
        'binary_operator_spaces' => [
            'default' => 'single_space',
        ],
        'blank_line_after_namespace' => true,
        'blank_line_after_opening_tag' => true,
        'blank_line_before_statement' => [
            'statements' => ['return']
        ],
        'braces' => [
            'position_after_functions_and_oop_constructs' => 'next'
        ],
        'cast_spaces' => ['space' => 'single'],
        'class_definition' => ['multi_line_extends_each_single_line' => true],
        'concat_space' => ['spacing' => 'one'],
        'declare_strict_types' => true,
        'function_typehint_space' => true,
        'include' => true,
        'lowercase_cast' => true,
        'native_function_casing' => 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_blank_lines' => [
            'tokens' => [
                'curly_brace_block',
                'extra',
                'parenthesis_brace_block',
                'square_brace_block',
                'throw',
                'use'
            ]
        ],
        'no_leading_import_slash' => true,
        'no_leading_namespace_whitespace' => true,
        'no_mixed_echo_print' => ['use' => 'echo'],
        'no_multiline_whitespace_around_double_arrow' => true,
        'no_short_bool_cast' => true,
        'no_singleline_whitespace_before_semicolons' => true,
        'no_spaces_around_offset' => ['positions' => ['inside', 'outside']],
        'no_unused_imports' => true,
        'no_whitespace_before_comma_in_array' => true,
        'no_whitespace_in_blank_line' => true,
        'normalize_index_brace' => true,
        'object_operator_without_whitespace' => true,
        'ordered_imports' => ['sort_algorithm' => 'alpha'],
        'phpdoc_indent' => true,
        'phpdoc_tag_type' => true,
        'phpdoc_no_access' => true,
        'phpdoc_no_package' => true,
        'phpdoc_no_useless_inheritdoc' => true,
        'phpdoc_scalar' => true,
        'phpdoc_single_line_var_spacing' => true,
        'phpdoc_summary' => false,
        'phpdoc_to_comment' => true,
        'phpdoc_trim' => true,
        'phpdoc_types_order' => [
            'null_adjustment' => 'always_last',
            'sort_algorithm' => 'none'
        ],
        'semicolon_after_instruction' => true,
        'single_blank_line_at_eof' => true,
        'single_import_per_statement' => true,
        'single_line_after_imports' => true,
        'single_quote' => true,
        'space_after_semicolon' => true,
        'standardize_not_equals' => true,
        'ternary_operator_spaces' => true,
        'trailing_comma_in_multiline' => ['elements' => ['arrays']],
        'trim_array_spaces' => true,
        'unary_operator_spaces' => true,
        'whitespace_after_comma_in_array' => true,
        'general_phpdoc_tag_rename' => true,
        'phpdoc_inline_tag_normalizer' => true
    ])
    ->setFinder($finder);