Add Php cs fixer

.gitattributes

@@ -5,3 +5,7 @@
 /phpstan.neon.dist export-ignore
 /phpunit.xml.dist export-ignore
 /tests/ export-ignore
+
+* text=auto
+*.neon eol=lf
+*.php eol=lf

.gitignore

@@ -1,4 +1,5 @@
 /.idea/
+/.php-cs-fixer.cache
 /.phpunit.result.cache
 /composer.lock
 /demo/*.jpg

.php-cs-fixer.php

@@ -0,0 +1,99 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+    ->in('src/')
+    ->in('tests/')
+;
+
+return (new PhpCsFixer\Config())
+    ->setRules([
+        '@PSR12' => true,
+        'no_useless_else' => true,
+        'no_useless_return' => true,
+        'simplified_if_return' => true,
+        'no_superfluous_phpdoc_tags' => true,
+        'single_class_element_per_statement' => true,
+        'class_attributes_separation' => ['elements' => ['method' => 'one']],
+        'no_superfluous_phpdoc_tags' => true,
+        'single_class_element_per_statement' => true,
+        'array_syntax' => [
+            'syntax' => 'short'
+        ],
+        'blank_line_after_namespace' => true,
+        'blank_line_before_statement' => [
+            'statements' => ['declare', 'return']
+        ],
+        'blank_line_between_import_groups' => true,
+        'concat_space' => [
+            'spacing' => 'one'
+        ],
+        'constant_case' => true,
+        'braces_position' => [
+            'functions_opening_brace' => 'next_line_unless_newline_at_signature_end',
+            'allow_single_line_empty_anonymous_classes' => true,
+            'allow_single_line_anonymous_functions' => true
+        ],
+        'declare_equal_normalize' => [
+            'space' => 'none'
+        ],
+        'elseif' => true,
+        'encoding' => true,
+        'full_opening_tag' => true,
+        'line_ending' => true,
+        'lowercase_cast' => true,
+        'method_argument_space' => [
+            'on_multiline' => 'ensure_fully_multiline',
+            'keep_multiple_spaces_after_comma' => false,
+        ],
+        'trailing_comma_in_multiline' => [
+            'elements' => ['parameters'],
+        ],
+        'multiline_comment_opening_closing' => true,
+        'no_break_comment' => false,
+        'no_trailing_whitespace' => true,
+        'no_trailing_whitespace_in_comment' => true,
+        'no_whitespace_in_blank_line' => true,
+        'return_type_declaration' => [
+            'space_before' => 'none',
+        ],
+        'single_blank_line_at_eof' => true,
+        'strict_param' => false,
+        'modifier_keywords' => [
+            'elements' => ['const', 'method', 'property']
+        ],
+        'no_unused_imports' => true,
+        'ordered_imports' => [
+            'sort_algorithm' => 'alpha'
+        ],
+        'ordered_class_elements' => [
+            'order' => [
+                'use_trait',
+                'case',
+                'constant_public',
+                'constant_protected',
+                'constant_private',
+                'property_public_static',
+                'property_protected_static',
+                'property_private_static',
+                'property_public',
+                'property_protected',
+                'property_private',
+                'construct',
+                'method_public_static',
+                'method_protected_static',
+                'method_private_static',
+                'method_public',
+                'method_protected',
+                'method_private',
+                'magic',
+            ],
+            'sort_algorithm' => 'alpha',
+        ]
+    ])
+    ->setIndent("    ")
+    ->setFinder($finder)
+    ->setLineEnding("\n")
+    ->setUsingCache(true)
+    ->setParallelConfig(PhpCsFixer\Runner\Parallel\ParallelConfigFactory::detect())
+;
+

composer.json

@@ -29,6 +29,7 @@
         }
     },
     "require-dev": {
+        "friendsofphp/php-cs-fixer": "^3.49",
         "phpunit/phpunit": "^9.6",
         "phpstan/phpstan": "2.1.17",
         "squizlabs/php_codesniffer": "4.0.1",