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<?php
/**
* Piwik - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Validators;
abstract class BaseValidator
{
/**
* The method to validate a value. If the value has not an expected format, an instance of
* {@link Piwik\Validators\Exception} should be thrown.
*
* @param $value
* @throws Exception
*/
abstract public function validate($value);
protected function isValueBare($value)
{
// we allow this value. if it is supposed to be not empty, please use NotEmpty validator on top
return $value === false || $value === null || $value === '';
}
/**
* Lets you easily check a value against multiple validators.
*
* @param string $name The name/description of the field you want to validate the value for.
* The name will be prefixed in case there is any error.
* @param mixed $value The value which needs to be tested
* @param BaseValidator[] $validators
*/
public static function check($name, $value, $validators)
{
foreach ($validators as $validator) {
try {
$validator->validate($value);
} catch (\Exception $e) {
throw new Exception(strip_tags($name) . ': ' . $e->getMessage(), $e->getCode());
}
}
}
}
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