Bug #10924 Updated: long2ip gives wrong result/binary arithmatic does not work

ID: 10924 Updated by: derick Reported By: richarde@eskom.co.za Old-Status: Open Status: Suspended Bug Type: Network related Operating system: PHP Version: 4.0.4pl1 Assigned To: Comments: There is no solution for this, because PHP only deals with signed longs. However, you can now use the %u modifier in printf and sprintf to show a long unsigned number like this: <?php printf ("%u\n", ip2long ("147.110.52.10")); ?> 2473473034 I suspended this bug, until unsigned longs are really working (there are some feature request for this already). Derick Previous Comments: --------------------------------------------------------------------------- [2001-05-17 09:24:07] richarde@eskom.co.za $x = 2473473034; // 147.110.52.10 in int form settype($x, "integer"); // this line has no effect on final result of long2ip echo "long ".is_long($x); echo "<P>"; $y = ip2long("147.110.52.10"); echo "long ".is_long($y); echo "<P>"; echo ip2long("147.110.52.10"); // should be 2473473034 echo "<P>"; echo long2ip($y); // correct result here echo "<P>"; echo long2ip($x); // wrong result echo "<P>"; echo $y & 127; // correct result echo "<P>"; echo $x & 127; // incorrect result - should be 10 echo "<P>"; **** cut **** basically there is no way to do ip arithmatic using php - I cannot get large numbers like ip addresses from a database stored as integers and minipulate them - AND, OR and XOR do not work on large number as in example. --------------------------------------------------------------------------- ATTENTION! Do NOT reply to this email! To reply, use the web interface found at http://bugs.php.net/?id=10924&edit=2