public static function init()
{
MCached::connect();
$key = 'ord::chars::bin';
$chars = MCached::get($key);
if (!is_array($chars)) {
$chrs = $ords = array();
for ($i = 0; $i <= 0xff; $i++) {
$char = chr($i);
$bin = sprintf('%08b', $i);
$chrs[$i] = $char;
$ords[$char] = $i;
$b2cs[$bin] = $char;
$c2bs[$char] = $bin;
}
$chars = array($chrs, $ords, $b2cs, $c2bs);
MCached::set($key, $chars, 86400);
}
self::$chr = $chars[0];
self::$ord = $chars[1];
self::$b2c = $chars[2];
self::$c2b = $chars[3];
}