class CharsValidator in Form API Validation 8.2

Fapi Validation Plugin for Character validation.

Plugin annotation

@FapiValidationValidator(
  id = "chars",
  error_message = "Use only alpha characters at %field."
)

Hierarchy

• class \Drupal\fapi_validation\Plugin\FapiValidationValidator\CharsValidator implements FapiValidationValidatorsInterface

File

src/Plugin/FapiValidationValidator/CharsValidator.php, line 17

Namespace

Drupal\fapi_validation\Plugin\FapiValidationValidator

class CharsValidator implements FapiValidationValidatorsInterface {

  /**
   * {@inheritdoc}
   */
  public function validate(Validator $validator, array $element, FormStateInterface $form_state) {
    $params = $validator
      ->getParams();
    $value = $validator
      ->getValue();
    $size = function_exists('mb_strlen') ? mb_strlen($value) : strlen($value);
    for ($i = 0; $i < $size; $i++) {
      $current = substr($value, $i, 1);
      if (!in_array($current, $params)) {
        return FALSE;
      }
    }
    return TRUE;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CharsValidator::validate	public	function	Execute validation. Overrides FapiValidationValidatorsInterface::validate