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What is PHP Coding Standards Fixer ?
tl;dr
A tool to automatically fix PHP Coding Standards issues
the long version
The PHP Coding Standards Fixer (PHP CS Fixer) tool fixes your code to follow standards; whether you want to follow PHP coding standards as defined in the PSR-1, PSR-2, etc., or other community driven ones like the Symfony one. You can also define your (team's) style through configuration.
It can modernize your code (like converting the pow
function to the **operator on PHP 5.6) and (micro) optimize it.
If you are already using a linter to identify coding standards problems in your code, you know that fixing them by hand is tedious, especially on large projects. This tool does not only detect them, but also fixes them for you.
Installation
composer require friendsofphp/php-cs-fixer --dev
Configure
touch .php-cs-fixer.dist.php
Update file .php-cs-fixer.dist.php
<?php
use PhpCsFixer\Config;
use PhpCsFixer\Finder;
$rules = [
'return_type_declaration' => ['space_before' => 'none'], // NEW https://www.php-fig.org/psr/psr-12/#45-method-and-function-arguments
'no_unused_imports' => true, // NEW
//
'array_syntax' => ['syntax' => 'short'],
'blank_line_after_namespace' => true,
'blank_line_after_opening_tag' => true,
'braces' => true,
'cast_spaces' => true,
'concat_space' => [
'spacing' => 'none',
],
'declare_equal_normalize' => true,
'elseif' => true,
'encoding' => true,
'full_opening_tag' => true,
'fully_qualified_strict_types' => true, // added by Shift
'function_declaration' => true,
'function_typehint_space' => true,
'heredoc_to_nowdoc' => true,
'include' => true,
'increment_style' => ['style' => 'post'],
'indentation_type' => true,
'linebreak_after_opening_tag' => true,
'line_ending' => true,
'lowercase_cast' => true,
'lowercase_keywords' => true,
'lowercase_static_reference' => true, // added from Symfony
'magic_method_casing' => true, // added from Symfony
'magic_constant_casing' => true,
'method_argument_space' => true,
'native_function_casing' => true,
'no_alias_functions' => true,
'no_extra_blank_lines' => [
'tokens' => [
'extra',
'throw',
'use',
'use_trait',
],
],
'no_blank_lines_after_class_opening' => true,
'no_blank_lines_after_phpdoc' => true,
'no_closing_tag' => true,
'no_empty_phpdoc' => true,
'no_empty_statement' => true,
'no_leading_import_slash' => true,
'no_leading_namespace_whitespace' => true,
'no_mixed_echo_print' => [
'use' => 'echo',
],
'no_multiline_whitespace_around_double_arrow' => true,
'multiline_whitespace_before_semicolons' => [
'strategy' => 'no_multi_line',
],
'no_short_bool_cast' => true,
'no_singleline_whitespace_before_semicolons' => true,
'no_spaces_after_function_name' => true,
'no_spaces_inside_parenthesis' => true,
'no_trailing_comma_in_list_call' => true,
'no_trailing_comma_in_singleline_array' => true,
'no_trailing_whitespace' => true,
'no_trailing_whitespace_in_comment' => true,
'no_unreachable_default_argument_value' => 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,
'object_operator_without_whitespace' => true,
'phpdoc_indent' => 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' => true,
'phpdoc_to_comment' => true,
'phpdoc_trim' => true,
'phpdoc_types' => true,
'phpdoc_var_without_name' => true,
'self_accessor' => true,
'short_scalar_cast' => true,
'simplified_null_return' => false, // disabled by Shift
'single_blank_line_at_eof' => true,
'single_blank_line_before_namespace' => true,
'single_import_per_statement' => true,
'single_line_after_imports' => true,
'single_line_comment_style' => [
'comment_types' => ['hash'],
],
'single_quote' => true,
'space_after_semicolon' => true,
'standardize_not_equals' => true,
'switch_case_semicolon_to_colon' => true,
'switch_case_space' => true,
'ternary_operator_spaces' => true,
'trim_array_spaces' => true,
'unary_operator_spaces' => true,
'whitespace_after_comma_in_array' => true,
// php-cs-fixer 3: Renamed rules
'constant_case' => ['case' => 'lower'],
'general_phpdoc_tag_rename' => true,
'phpdoc_inline_tag_normalizer' => true,
'phpdoc_tag_type' => true,
'psr_autoloading' => true,
'trailing_comma_in_multiline' => ['elements' => ['arrays']],
// php-cs-fixer 3: Changed options
'binary_operator_spaces' => [
'default' => 'single_space',
'operators' => ['=>' => null],
],
'blank_line_before_statement' => [
'statements' => ['return'],
],
'class_attributes_separation' => [
'elements' => [
'const' => 'one',
'method' => 'one',
'property' => 'one',
],
],
'class_definition' => [
'multi_line_extends_each_single_line' => true,
'single_item_single_line' => true,
'single_line' => true,
],
'ordered_imports' => [
'sort_algorithm' => 'alpha',
'imports_order' => ['const', 'class', 'function'], // NEW https://mlocati.github.io/php-cs-fixer-configurator/#version:3.3%7Cfixer:ordered_imports
],
// php-cs-fixer 3: Removed rootless options (*)
'no_unneeded_control_parentheses' => [
'statements' => ['break', 'clone', 'continue', 'echo_print', 'return', 'switch_case', 'yield'],
],
'no_spaces_around_offset' => [
'positions' => ['inside', 'outside'],
],
'visibility_required' => [
'elements' => ['property', 'method', 'const'],
],
];
$finder = Finder::create()
->in([
__DIR__.'/app',
__DIR__.'/config',
__DIR__.'/database',
__DIR__.'/resources',
__DIR__.'/routes',
__DIR__.'/tests',
])
->name('*.php')
->notName('*.blade.php')
->ignoreDotFiles(true)
->ignoreVCS(true);
return (new Config())
->setFinder($finder)
->setRules($rules)
->setRiskyAllowed(true)
->setUsingCache(true);
Update composer.json
, add a format
script
"scripts": {
"format": "vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.dist.php --allow-risky=yes",
"post-autoload-dump": [
"Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
"@php artisan package:discover --ansi"
],
}
In summary the config file instructs PHP CS what files to format
- Only format
php
files in the directory/app
,/config
,/database
,/resources
,/routes
,/tests
, - Ignore blade view files
- Ignore dot files
- Ignore CVS files
- Use rules as defined in
$rules
Run format
composer format
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