- array_merge: documentation ( source)
- pack: documentation ( source)
<?php
$result = array( 167, 00, 67, 00, 00, 00 );
//$result = array( "\xb0\x00", "\x43\x00", "\x00\x00" );
//$result = "\ub000\u4300\u0000";
$str = call_user_func_array("pack", array_merge(array("C*"), $result));
echo "str is: $str";
echo "result is: $result";
?>