>>882
<?php
$a[] = pack("c", 0x01);
$a[] = pack("c", 0x02);
$a[] = pack("c", 0x03);
$a[] = pack("c", 0x04);
$a[] = pack("c", 0x00);
$a[] = pack("c", 0x02);
$a[] = pack("c", 0x03);
$a[] = pack("c", 0xAA);
$b = (($a[5] << 8) | $a[6]) & 0xFF;
echo bin2hex($b);
?>