SimpleMachines / SMF2.1

 * @param mixed $value

 * @return string

 */

function safe_serialize($value)

{

	// Make sure we use the byte count for strings even when strlen() is overloaded by mb_strlen()

	if (function_exists('mb_internal_encoding') &&

		(((int) ini_get('mbstring.func_overload')) & 2))

	{

		$mbIntEnc = mb_internal_encoding();

		mb_internal_encoding('ASCII');

	}

	$out = _safe_serialize($value);

	if (isset($mbIntEnc))

		mb_internal_encoding($mbIntEnc);

	return $out;

}

/**

 * Safe unserialize() replacement

 * @param string $str

 * @return mixed

 */

function safe_unserialize($str)

{

	// Make sure we use the byte count for strings even when strlen() is overloaded by mb_strlen()

	if (function_exists('mb_internal_encoding') &&

		(((int) ini_get('mbstring.func_overload')) & 0x02))

	{

		$mbIntEnc = mb_internal_encoding();

		mb_internal_encoding('ASCII');

	}

	$out = _safe_unserialize($str);

	if (isset($mbIntEnc))

		mb_internal_encoding($mbIntEnc);

	return $out;

}

/**

 * Tries different modes to make file/dirs writable. Wrapper function for chmod()