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I ate three cookies 🍪 (v3.40.2) edition

Rule native_type_declaration_casing

Native type declarations should be used in the correct case.

Examples

Example #1

--- Original
+++ New
 <?php
 class Bar {
-    public function Foo(CALLABLE $bar): INT
+    public function Foo(callable $bar): int
     {
         return 1;
     }
 }

Example #2

--- Original
+++ New
 <?php
 class Foo
 {
-    const INT BAR = 1;
+    const int BAR = 1;
 }

Rule sets

The rule is part of the following rule sets:

Source class

PhpCsFixer\Fixer\Casing\NativeTypeDeclarationCasingFixer