Bug #52729 [NEW]: unpack() format I, L, N and V returns negative value

From: Operating system: Linux PHP version: 5.3.3 Package: Unknown/Other Function Bug Type: Bug Bug description:unpack() format I, L, N and V returns negative value Description: ------------ According to the documentation, all I, L, N and V formats are defined to be unsigned integer. On my Linux(32bit intel), unpacking FFFFFF returns -1. As you can see the test script, we automatically use float for large integer. So the result should be float(4294967295), otherwise we get wrong number of -1. Test script: --------------- <?php var_dump(unpack("I","\xFF\xFF\xFF\xFF")); var_dump(unpack("L","\xFF\xFF\xFF\xFF")); var_dump(unpack("N","\xFF\xFF\xFF\xFF")); var_dump(unpack("V","\xFF\xFF\xFF\xFF")); var_dump(PHP_INT_MAX); var_dump(PHP_INT_SIZE); var_dump(4294967295); Expected result: ---------------- array(1) { [1]=> float(4294967295) } array(1) { [1]=> float(4294967295) } array(1) { [1]=> float(4294967295) } array(1) { [1]=> float(4294967295) } int(2147483647) int(4) float(4294967295) Actual result: -------------- array(1) { [1]=> int(-1) } array(1) { [1]=> int(-1) } array(1) { [1]=> int(-1) } array(1) { [1]=> int(-1) } int(2147483647) int(4) float(4294967295) -- Edit bug report at http://bugs.php.net/bug.php?id=52729&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=52729&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=52729&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=52729&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=52729&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52729&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=52729&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=52729&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=52729&r=needscript Try newer version: http://bugs.php.net/fix.php?id=52729&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=52729&r=support Expected behavior: http://bugs.php.net/fix.php?id=52729&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=52729&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=52729&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=52729&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52729&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=52729&r=dst IIS Stability: http://bugs.php.net/fix.php?id=52729&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=52729&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=52729&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=52729&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=52729&r=mysqlcfg