Result
Unfortunately, no history for this test is available.
Code
The first test, "ord()", was:
$GLOBALS['dummy'] = array( 'a' => ord($GLOBALS['packed']{0}), 'b' => ord($GLOBALS['packed']{1}), 'c' => ord($GLOBALS['packed']{2}), 'd' => ord($GLOBALS['packed']{3}), );
The second test, "unpack()", was:
$GLOBALS['dummy'] = unpack('Ca/Cb/Cc/Cd', $GLOBALS['packed']);