PHP DESERIALIZE (UNSERIALIZE) STRING WITH NON UTF8 CHARACTERS

Unserializer.php

<?php
/**
 * If you have serialized data, which have non utf-8 characters, probably you'll have a problem in deserialization (unserialization).
 * So, what we need to do is to unserialize out serialized data properly?
 * 1. Replace all non utf-8 characters to '?'
 * 2. Update serialized data length
 * 3. Deserialize
 * 
 * Let's go!
 */
class Unserializer
{
    /**
     * @var string
     * @link https://magp.ie/2014/08/13/php-unserialize-string-after-non-utf8-characters-stripped-out/
     * @link https://magp.ie/2011/01/06/remove-non-utf8-characters-from-string-with-php/
     * 
     * For reject overly long 2 byte sequences, as well as characters above U+10000 and replace with ? you can use bellow regex
     * '/[\x00-\x08\x10\x0B\x0C\x0E-\x19\x7F]'.
     * '|[\x00-\x7F][\x80-\xBF]+'.
     * '|([\xC0\xC1]|[\xF0-\xFF])[\x80-\xBF]*'.
     * '|[\xC2-\xDF]((?![\x80-\xBF])|[\x80-\xBF]{2,})'.
     * '|[\xE0-\xEF](([\x80-\xBF](?![\x80-\xBF]))|(?![\x80-\xBF]{2})|[\x80-\xBF]{3,})/S'
     * 
     * For reject overly long 3 byte sequences and UTF-16 surrogates and replace with ? you can use bellow regex:
     * '/\xE0[\x80-\x9F][\x80-\xBF]'.
     * '|\xED[\xA0-\xBF][\x80-\xBF]/S'
     *-----------------------------------------------------------------
     * 
     * At the stackoverflow (http://stackoverflow.com/questions/1176904) guys advice to use many variants of regex, like:
     * '/[[:cntrl:]]+/'
     * or 
     * '/[^[:print:]]/'
     * 
     * You may use any one you want
     */
    protected $nonCharsRegex = '/[\x00-\x1F\x80-\xFF]/';
    
    /**
     * Replace non chars to the property value.
     * It can be null or any other.
     * 
     * @var string
     */ 
    protected $replaceTo = '?';
    
    /**
     * Unserialize serialized string.
     * Firstly try to unserialize it using basic unserialization.
     * If it's impossible, call additional functionality for the unserialization.
     * 
     * @param string $message
     * @return mixed
     */
    public function unserialize($message)
    {
        $record = @unserialize($message);
        
        /** @link http://php.net/manual/en/function.unserialize.php#refsect1-function.unserialize-notes */
        if ($message !== false && $record === false) {
            $message = $this->replaceSpecialChars($message);
            $message = $this->updateSerializedMessage($message);

            $record = @unserialize($message);
        }
        
        return $record;
    }

    /**
     * Remove non utf-8 chars.
     * It matches anything in range 0-31, 128-255 and replace it to '?'.
     *
     * @param string $message
     * @return string
     */
    protected function replaceSpecialChars($message)
    {
        return preg_replace($this->nonCharsRegex, $this->replaceTo , $message);
    }

    /**
     * Update serialized message (make it valid).
     *
     * @param string $message
     * @return string
     */
    protected function updateSerializedMessage($message)
    {
        return preg_replace_callback(
            '!s:(\d+):"(.*?)";!s',
            function ($matches) {
                if (isset($matches[2])) {
                    return 's:'.strlen($matches[2]).':"'.$matches[2].'";';
                }
            },
            $message
        );
    }
} 

The preg_replacement will fail if there's a "; (double quote, semicolon) in the string.