saltandvinegarcrisps/multibyte-unserialize.php

## multibyte-unserialize.php
<?php

function mb_unserialize($string) {
    $string = preg_replace_callback('#s:\d+:"(.*?)";#s', function($matches) { return sprintf('s:%d:"%s";', strlen($matches[1]), $matches[1]); }, $string);
    return unserialize($string);
}
	<?php

	function mb_unserialize($string) {
	$string = preg_replace_callback('#s:\d+:"(.*?)";#s', function($matches) { return sprintf('s:%d:"%s";', strlen($matches[1]), $matches[1]); }, $string);
	return unserialize($string);
	}