how to store serialized object with namespace in database using pdo php

Question

When i try to store serialized object with namespace i cant do that beacuse i got error unterminated quoted string at or near \"\'O:22:\"protect\\classes\\Router\". Code:

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Answer 1

I was facing same problem - and found out here that this is the zer-byte problems. After some development I created an adapter for Zend Serializer (ZF2) that overloads serialize/unserialize methods in a way that it will be possible to store these serialized values in PostgreSQL.

The code you can find below - hopefully it will somehow useful :)

use Zend\Serializer\Adapter\PhpSerialize;

/**
 *
 * Class overloads serialization methods so serialized objects will be PostgreSQL safe
 * For further information on safe/unsafe objects:
 * http://php.net/manual/en/function.serialize.php#96504
 *
 */
class PostgresSerialize extends PhpSerialize {

    const DEFAULT_SAFE_NULLBYTE_REPLACEMENT = "~~NULL_BYTE~~";

    protected static $serializedFalse = null;

    public function serialize($value) {
        $serializedString = parent::serialize($value);
        if (strpos($this->options['safe_nullbyte_replacement'], $serializedString))
            throw new \RuntimeException('Cannot perform safe nullbyte replace operation since safe_nullbyte_replacement="' .  $this->options['safe_nullbyte_replacement'] . '"value already exists in the serialized string', \Zend\Log\Logger::ERR);
        if ($this->options['safe_nullbyte_replacement'] == null)
            $this->options['safe_nullbyte_replacement'] = self::DEFAULT_SAFE_NULLBYTE_REPLACEMENT;
        return str_replace("\0", $this->options['safe_nullbyte_replacement'], $serializedString);
    }

    public function unserialize($serialized) {
        if ($this->options['safe_nullbyte_replacement'] == null)
            $this->options['safe_nullbyte_replacement'] = self::DEFAULT_SAFE_NULLBYTE_REPLACEMENT;
        $serializedString = str_replace($this->options['safe_nullbyte_replacement'], "\0", $serialized);
        return parent::unserialize($serializedString);
    }

}