#42694 [NEW]: decbin() is not returning the correct value

From: carrotcake1029 at gmail dot com Operating system: Windows Vista Home Premium PHP version: 5.2.4 PHP Bug Type: *Encryption and hash functions Bug description: decbin() is not returning the correct value Description: ------------ I wrote my own little function that can take numbers and make turn them into numbers of other bases. When I ran a few tries with binary, I began to notice that PHP's decbin() was not matching up with mine. Easily proven, mine was correct. Reproduce code: --------------- echo dec2base(4728937489, 2) . "\n"; echo decbin(4728937489); function dec2base($int, $base) { while ($int >= 1) { $ret .= $int % $base; $int = $int / $base; } return strrev($ret); } Expected result: ---------------- 100011001110111011101110000010001 100011001110111011101110000010001 Actual result: -------------- 100011001110111011101110000010001 11001110111011101110000010001 -- Edit bug report at http://bugs.php.net/?id=42694&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=42694&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=42694&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=42694&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=42694&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=42694&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=42694&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=42694&r=needscript Try newer version: http://bugs.php.net/fix.php?id=42694&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=42694&r=support Expected behavior: http://bugs.php.net/fix.php?id=42694&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=42694&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=42694&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=42694&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42694&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=42694&r=dst IIS Stability: http://bugs.php.net/fix.php?id=42694&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=42694&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=42694&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=42694&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=42694&r=mysqlcfg