code: protected function validateAll($includeAllRules = false)
      {
          if ($includeAllRules) {
              /*
               * Include fields that might not have been included
               */
              $fieldData = new Collection(array_fill_keys(array_keys($this->_validations->toArray()), null));
              $fieldData->update($this->_updates->toArray());
          }
          else
          {
              $fieldData = clone $this->_updates;
          }
  
          foreach ($fieldData->toArray() as $field => $val) {
              //Match double fields
              $field2 = $field . '2';
              if (!is_null($fieldData->$field2)) {
                  // Compared the two double fields
                  if ($val != $fieldData->$field2) {
                      $this->log->formError($field, ucfirst($field) . 's did not match');
                  } else {
                      $this->log->report(ucfirst($field) . 's matched');
                  }
              }
  
              // Trim white spaces at end and start
              if ($this->_updates->$field) {
                  $this->_updates->$field = trim($val);
              }
  
              // Check if a validation rule exists for the field
              if ($validation = $this->_validations->$field) {
                  $this->validate($field, $validation->limit, $validation->regEx);
              }
          }
          return !$this->log->hasError();
      }
docs: Validates All fields in _updates queue
  
  @param bool $includeAllRules - Will also run rules not validated
  
  @return bool