[12.x] Move duplicated logic to separate method to be reusable (#57564)

* Move duplicated logic to separate method

to be reusable

* Fix typo

* StyleCI

* array spacing
* indent using spaces instead of tabs

* More styling

* Give the return line room to breath

* formatting

---------

Co-authored-by: Taylor Otwell <taylor@laravel.com>

Author: shaedrich

src/Illuminate/Validation/Concerns/ReplacesAttributes.php

@@ -22,11 +22,7 @@ protected function replaceAcceptedIf($message, $attribute, $rule, $parameters)
 
         $parameters[0] = $this->getDisplayableAttribute($parameters[0]);
 
-        return str_replace(
-            [':other', ':OTHER', ':Other', ':value', ':VALUE', ':Value'],
-            [$parameters[0], Str::upper($parameters[0]), Str::ucfirst($parameters[0]), $parameters[1], Str::upper($parameters[1]), Str::ucfirst($parameters[1])],
-            $message
-        );
+        return $this->replaceWhileKeepingCase($message, ['other' => $parameters[0], 'value' => $parameters[1]]);
     }
 
     /**
@@ -337,11 +333,7 @@ protected function replaceInArray($message, $attribute, $rule, $parameters)
     {
         $value = $this->getDisplayableAttribute($parameters[0]);
 
-        return str_replace(
-            [':other', ':OTHER', ':Other'],
-            [$value, Str::upper($value), Str::ucfirst($value)],
-            $message
-        );
+        return $this->replaceWhileKeepingCase($message, ['other' => $value]);
     }
 
     /**
@@ -629,11 +621,7 @@ protected function replaceRequiredIfAccepted($message, $attribute, $rule, $param
     {
         $value = $this->getDisplayableAttribute($parameters[0]);
 
-        return str_replace(
-            [':other', ':OTHER', ':Other'],
-            [$value, Str::upper($value), Str::ucfirst($value)],
-            $message
-        );
+        return $this->replaceWhileKeepingCase($message, ['other' => $value]);
     }
 
     /**
@@ -774,11 +762,7 @@ protected function replaceSame($message, $attribute, $rule, $parameters)
     {
         $value = $this->getDisplayableAttribute($parameters[0]);
 
-        return str_replace(
-            [':other', ':OTHER', ':Other'],
-            [$value, Str::upper($value), Str::ucfirst($value)],
-            $message
-        );
+        return $this->replaceWhileKeepingCase($message, ['other' => $value]);
     }
 
     /**
@@ -946,4 +930,28 @@ protected function replaceDoesntContain($message, $attribute, $rule, $parameters
     {
         return $this->replaceIn($message, $attribute, $rule, $parameters);
     }
+
+    /**
+     * Replace the given string while maintaining different casing variants.
+     *
+     * @param  array<string, string>  $mapping
+     */
+    private function replaceWhileKeepingCase(string $message, array $mapping): string
+    {
+        $fn = [Str::lower(...), Str::upper(...), Str::ucfirst(...)];
+
+        $cases = array_reduce(
+            array_keys($mapping),
+            fn (array $carry, string $placeholder) => [...$carry, ...array_map(fn (callable $fn) => ':'.$fn($placeholder), $fn)],
+            [],
+        );
+
+        $replacements = array_reduce(
+            array_values($mapping),
+            fn (array $carry, string $parameter) => [...$carry, ...array_map(fn (callable $fn) => $fn($parameter), $fn)],
+            [],
+        );
+
+        return str_replace($cases, $replacements, $message);
+    }
 }