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<?php $num = base_convert("fffffffe",16,2); var_dump($num); $arr = str_split($num); for ($i=0,$max = count($arr)-1; $i <=$max; $i++) { if ($arr[$i] == '1' ) { $arr[$i] = '0'; } else if ($arr[$i] == '0') { $arr[$i] = '1'; } } $str = join('',$arr); var_dump($str); $converted = base_convert($str,2,16); $hex = '0x'.$converted; $a = gmp_add($hex,"1"); echo gmp_strval($a),'<BR>'; $a = -(gmp_intval($a)); var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
string(32) "11111111111111111111111111111110" string(32) "00000000000000000000000000000001" 2<BR>int(-2)

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