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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;
* BooleanValidator checks if the attribute value is a boolean value.
*
* Possible boolean values can be configured via the [[trueValue]] and [[falseValue]] properties.
* And the comparison can be either [[strict]] or not.
* @author Qiang Xue <[email protected]>
* @since 2.0
class BooleanValidator extends Validator
{
* @var mixed the value representing true status. Defaults to '1'.
public $trueValue = '1';
* @var mixed the value representing false status. Defaults to '0'.
public $falseValue = '0';
* @var bool whether the comparison to [[trueValue]] and [[falseValue]] is strict.
* When this is true, the attribute value and type must both match those of [[trueValue]] or [[falseValue]].
* Defaults to false, meaning only the value needs to be matched.
public $strict = false;
* @inheritdoc
public function init()
parent::init();
if ($this->message === null) {
$this->message = Yii::t('yii', '{attribute} must be either "{true}" or "{false}".');
}
protected function validateValue($value)
if ($this->strict) {
$valid = $value === $this->trueValue || $value === $this->falseValue;
} else {
$valid = $value == $this->trueValue || $value == $this->falseValue;
if (!$valid) {
return [$this->message, [
'true' => $this->trueValue === true ? 'true' : $this->trueValue,
'false' => $this->falseValue === false ? 'false' : $this->falseValue,
]];
return null;