Serialize.php

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<?php
namespace Magento\Framework\Serialize\Serializer;

use Magento\Framework\Serialize\SerializerInterface;

class Serialize implements SerializerInterface
{
    public function serialize($data)
    {
        if (is_resource($data)) {
            throw new \InvalidArgumentException('Unable to serialize value.');
        }
        return serialize($data);
    }

    public function unserialize($string)
    {
        if (false === $string || null === $string || '' === $string) {
            throw new \InvalidArgumentException('Unable to unserialize value.');
        }
        set_error_handler(
            function () {
                restore_error_handler();
                throw new \InvalidArgumentException('Unable to unserialize value, string is corrupted.');
            },
            E_NOTICE
        );
        $result = unserialize($string, ['allowed_classes' => false]);
        restore_error_handler();
        return $result;
    }
}