From: diefans at googlemail dot com Operating system: 2.6.8-2-686-smp GNU/Linux PHP version: 5.2.0 PHP Bug Type: Variables related Bug description: overflow on double word
Description: ------------ php 5.2.0 prints the double values quite well in a string, but if you do calculations everything goes wrong Reproduce code: --------------- <?php /** * shows odd behavior with php version 5.2.0 * php version 5.1.4 seems to safe the bits */ $a = -5850009183; $aa = 2739925409; echo "\ngettype($a):".gettype($a); echo "\ngettype($aa):".gettype($aa); echo "\ndechex($a):".dechex($a); echo "\ndechex($aa):".dechex($aa); echo "\nhexdec(dechex($a)):".hexdec(dechex($a)); echo "\nhexdec(dechex($aa)):".hexdec(dechex($aa)); echo "\ndecbin($a):".decbin($a); echo "\ndecbin($aa):".decbin($aa); echo "\ndecoct($a):".decoct($a); echo "\ndecoct($aa):".decoct($aa); echo "\n"; ?> Expected result: ---------------- PHP 5.1.4 (cli) (built: Jul 17 2006 18:15:40): gettype(-5850009183):double gettype(2739925409):double dechex(-5850009183):a34ff1a1 dechex(2739925409):a34ff1a1 hexdec(dechex(-5850009183)):2739925409 hexdec(dechex(2739925409)):2739925409 decbin(-5850009183):10100011010011111111000110100001 decbin(2739925409):10100011010011111111000110100001 decoct(-5850009183):24323770641 decoct(2739925409):24323770641 Actual result: -------------- PHP 5.2.0 (cli) (built: Nov 19 2006 14:38:41): gettype(-5850009183):double gettype(2739925409):double dechex(-5850009183):80000000 dechex(2739925409):a34ff1a1 hexdec(dechex(-5850009183)):2147483648 hexdec(dechex(2739925409)):2739925409 decbin(-5850009183):10000000000000000000000000000000 decbin(2739925409):10100011010011111111000110100001 decoct(-5850009183):20000000000 decoct(2739925409):24323770641 -- Edit bug report at http://bugs.php.net/?id=39622&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39622&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39622&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39622&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=39622&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=39622&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=39622&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=39622&r=needscript Try newer version: http://bugs.php.net/fix.php?id=39622&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=39622&r=support Expected behavior: http://bugs.php.net/fix.php?id=39622&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=39622&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=39622&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=39622&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39622&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=39622&r=dst IIS Stability: http://bugs.php.net/fix.php?id=39622&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=39622&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=39622&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=39622&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=39622&r=mysqlcfg
