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<?php
declare(strict_types=1);
namespace Yiisoft\Validator\Rule\Trait;
trait EmptyCheckTrait
{
/**
* Checks if the given value is empty.
* A value is considered empty if it is null, an empty array, or an empty string.
* Note that this method is different from PHP empty(). It will return false when the value is 0.
*
* @param mixed $value the value to be checked
* @return bool whether the value is empty
*/
private function isEmpty(mixed $value): bool
return $value === null || $value === [] || $value === '';
}
yiisoft /
validator
