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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\validators;
use Yii;
use yii\base\InvalidConfigException;
* RegularExpressionValidator validates that the attribute value matches the specified [[pattern]].
*
* If the [[not]] property is set true, the validator will ensure the attribute value do NOT match the [[pattern]].
* @author Qiang Xue <[email protected]>
* @since 2.0
class RegularExpressionValidator extends Validator
{
* @var string the regular expression to be matched with
public $pattern;
* @var bool whether to invert the validation logic. Defaults to false. If set to true,
* the regular expression defined via [[pattern]] should NOT match the attribute value.
public $not = false;
* @inheritdoc
public function init()
parent::init();
if ($this->pattern === null) {
throw new InvalidConfigException('The "pattern" property must be set.');
}
if ($this->message === null) {
$this->message = Yii::t('yii', '{attribute} is invalid.');
protected function validateValue($value)
$valid = !is_array($value) &&
(!$this->not && preg_match($this->pattern, $value)
|| $this->not && !preg_match($this->pattern, $value));
return $valid ? null : [$this->message, []];