fix: separate process of multiple field and single field

Author: kenjis

system/Validation/Validation.php

@@ -139,16 +139,20 @@ public function run(?array $data = null, ?string $group = null, ?string $dbGroup
             }
 
             $values = dot_array_search($field, $data);
-            $values = is_array($values) ? $values : [$values];
 
             if ($values === []) {
                 // We'll process the values right away if an empty array
                 $this->processRules($field, $setup['label'] ?? $field, $values, $rules, $data);
             }
 
-            foreach ($values as $value) {
-                // Otherwise, we'll let the loop do the job
-                $this->processRules($field, $setup['label'] ?? $field, $value, $rules, $data);
+            if (strpos($field, '*') !== false && is_array($values)) {
+                // Process multiple fields
+                foreach ($values as $value) {
+                    $this->processRules($field, $setup['label'] ?? $field, $value, $rules, $data);
+                }
+            } else {
+                // Process single field
+                $this->processRules($field, $setup['label'] ?? $field, $values, $rules, $data);
             }
         }
 

tests/system/Validation/FormatRulesTest.php

@@ -837,10 +837,11 @@ public function testNumericWithInvalidTypeData($value, bool $expected): void
 
     public function integerInvalidTypeDataProvider(): Generator
     {
-        yield 'array with int' => [
-            [555],
-            true,  // incorrect
-        ];
+        // TypeError : CodeIgniter\Validation\FormatRules::integer(): Argument #1 ($str) must be of type ?string, array given
+        // yield 'array with int' => [
+        // [555],
+        // false,
+        // ];
 
         // TypeError : CodeIgniter\Validation\FormatRules::integer(): Argument #1 ($str) must be of type ?string, array given
         // yield 'empty array' => [

tests/system/Validation/ValidationTest.php

@@ -119,7 +119,7 @@ public function arrayDataProvider(): Generator
     {
         yield 'list array' => [
             [1, 2, 3, 4, 5],
-            false,   // incorrect
+            true,
         ];
 
         yield 'associative array' => [
@@ -128,7 +128,7 @@ public function arrayDataProvider(): Generator
                 'role'     => 'administrator',
                 'usepass'  => 0,
             ],
-            false,   // incorrect
+            true,
         ];
 
         yield 'int' => [
@@ -171,7 +171,7 @@ public function isIntInvalidTypeDataProvider(): Generator
     {
         yield 'array with int' => [
             [555],
-            true,  // incorrect
+            false,
         ];
 
         yield 'empty array' => [