CakePHP 3 regex validation

Question

私は正規の正規表現を使って数字以外の文字を許可しようとしていますが、動作しません。

public function validationDefault(Validator $validator) 
{   
     $validator 
      ->requirePresence('username') 
      ->notEmpty('username', 'A username is required.') 
      ->alphaNumeric('username', 'A username must be alphanumeric.') 
      ->add('username', 'validChars',[ 
       //'rule' => ['custom', '([0-9])'], // PASSED - Excepts anything but must have a number. 
       'rule' => ['custom', '([^0-9])'], // FAILED - Excepts anything but NOT a number. 
       'message' => 'Excepts anything except a number.' 
      ]) 
      ->requirePresence('password') 
      ->notEmpty('password', 'A password is required.'); 

      return $validator; 
} 

ありがとうございました。 Z.

Answer 1

public function validationDefault(Validator $validator) 
{   
    $validator 
     ->requirePresence('username') 
     ->notEmpty('username', 'A username is required.') 
     ->alphaNumeric('username', 'A username must be alphanumeric.') 
     ->add('username', 'validChars',[ 
      'rule' => function ($value, $context) { 
       return !preg_match('/[0-9]/', $value); //Return true if no number is present in the value  
      }, 
      'message' => 'Excepts anything except a number.' 
     ]) 
     ->requirePresence('password') 
     ->notEmpty('password', 'A password is required.'); 

     return $validator; 
}