add function to check is ther extra inputs

README.md

@@ -34,7 +34,7 @@ Valitron uses [Composer](http://getcomposer.org) to install and update:
 
 ```
 curl -s http://getcomposer.org/installer | php
-php composer.phar require vlucas/valitron
+php composer.phar require okbach/valitron
 ```
 
 The examples below use PHP 5.4 syntax, but Valitron works on PHP 5.3+.
@@ -56,6 +56,21 @@ if($v->validate()) {
 }
 ```
 
+
+## AllowedFields Usage
+
+The `AllowedFields` method is used to restrict input data to a predefined set of fields.  
+If extra fields are detected, an error message will display the unexpected fields.
+
+### Example:
+```php
+$allowedKeys = ['name', 'email', 'phone_number', 'password'];
+$v->AllowedFields($allowedKeys);
+```
+
+
+
+
 Using this format, you can validate `$_POST` data directly and easily,
 and can even apply a rule like `required` to an array of fields:
 

composer.json

@@ -1,22 +1,27 @@
 {
-    "name": "vlucas/valitron",
+    "name": "okbach/valitron",
     "type": "library",
     "description": "Simple, elegant, stand-alone validation library with NO dependencies",
     "keywords": ["validation", "validator", "valid"],
-    "homepage": "https://github.com/vlucas/valitron",
+    "homepage": "https://github.com/okbach/valitron",
     "license": "BSD-3-Clause",
     "authors": [
+        {
+            "name": "Okbach",
+            "email": "gokbahack@gmail.com",
+            "homepage": "https://github.com/okbach"
+        },
         {
             "name": "Vance Lucas",
             "email": "vance@vancelucas.com",
             "homepage": "https://www.vancelucas.com"
         }
     ],
     "require": {
-        "php": ">=5.3.2"
+        "php": ">=7.2"
     },
     "require-dev": {
-        "phpunit/phpunit": ">=4.8.35"
+        "phpunit/phpunit": "^9.0"
     },
     "suggest": {
         "ext-mbstring": "It can support the multiple bytes string length."

lang/ar.php

@@ -25,5 +25,6 @@
     'dateFormat'    => "يجب ان يكون تاريخ بهذه الصيغة '%s'",
     'dateBefore'    => "التاريخ يجب ان يكون قبل '%s'",
     'dateAfter'     => "التاريخ يجب ان يكون بعد '%s'",
-    'contains'      => "يجب ان يحتوي %s"
+    'contains'      => "يجب ان يحتوي %s",
+    'extra_input'      => "مدخلات غير متوقعة",
 );

lang/en.php

@@ -39,4 +39,5 @@
     'requiredWithout'=> "is required",
     'subset'         => "contains an item that is not in the list",
     'arrayHasKeys'   => "does not contain all required keys",
+    'extra_input'      => "Unexpected input",
 );

src/Valitron/Validator.php

@@ -1591,4 +1591,23 @@ private function isAssociativeArray($input){
         //array contains at least one key that's not an can not be cast to an integer
         return count(array_filter(array_keys($input), 'is_string')) > 0;
     }
+
+
+    /**
+     * 
+     * @param array $allowedFields
+     * @return void
+     */
+    public function AllowedFields(array $allowedFields)
+    {
+        $extraFields = array_diff(array_keys($this->_fields), $allowedFields);
+        if (!empty($extraFields)) {
+            $langMessages = $this->getRuleMessages(); 
+            $errorMessage = isset($langMessages['extra_input']) ? $langMessages['extra_input'] : 'Unexpected input';
+            foreach ($extraFields as $field) {
+                $this->_errors[$field][] = $errorMessage;
+            }
+        }
+    }
+
 }