JsonValidator.php

См. документацию.

<?php
 
declare(strict_types=1);
 
namespace Bitrix\Main\Validation\Validator;
 
use Bitrix\Main\Localization\LocalizableMessage;
use Bitrix\Main\Validation\ValidationError;
use Bitrix\Main\Validation\ValidationResult;
use Bitrix\Main\Web\Json;
 
class JsonValidator implements ValidatorInterface
{
    public function validate(mixed $value): ValidationResult
    {
        $result = new ValidationResult();
 
        if (!is_string($value))
        {
            return $result->addError(
                new ValidationError(
                    new LocalizableMessage('MAIN_VALIDATION_JSON_NOT_A_STRING'),
                    failedValidator: $this
                )
            );
        }
 
        if (!Json::validate($value))
        {
            return $result->addError(
                new ValidationError(
                    new LocalizableMessage('MAIN_VALIDATION_JSON_NOT_JSON'),
                    failedValidator: $this
                )
            );
        }
 
        return $result;
    }
}