ID: 43487 Comment by: oeriksson at mandriva dot com Reported By: jm at wo dot cz Status: Feedback Bug Type: Strings related Operating System: Linux PHP Version: 5.2.5 New Comment:
I get the same problem, but it seems related to what CPU is used. http://qa.mandriva.com/show_bug.cgi?id=37171 $ uname -a Linux foo.nux.se 2.6.24-server-0.rc8.2mdv #1 SMP Wed Jan 23 17:15:33 UTC 2008 i686 Intel(R) Pentium(R) 4 CPU 2.80GHz GNU/Linux $ php -r "var_dump(11.1/111);" float(0.0:) $ uname -a Linux oe.nux.tld 2.6.24-desktop-0.rc8.2mdv #1 SMP Wed Jan 23 18:12:45 CET 2008 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ GNU/Linux $ php -r "var_dump(11.1/111);" float(0.1) It works with 5.1.6 though. Previous Comments: ------------------------------------------------------------------------ [2008-01-26 01:12:23] [EMAIL PROTECTED] Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows (zip): http://snaps.php.net/win32/php5.2-win32-latest.zip For Windows (installer): http://snaps.php.net/win32/php5.2-win32-installer-latest.msi ------------------------------------------------------------------------ [2008-01-16 09:20:36] lmalgras at tennaxia dot com I have the same problem with PHP 5.2.4 on Linux Reproduce code: --------------- php -n -r '$f=array(1E-4, 1E-5, 1E-6, 1E-7, 1E-8); foreach($f as $fval) echo $fval, "\n";' Expected result: ---------------- 0.0001 1.0E-5 1.0E-6 1.0E-7 1.0E-8 Actual result: -------------- 0.0001 1.0E-5 :.0E-7 :.0E-8 1.0E-8 I have test this code on several configurations with the following results : PHP 5.2.0 (Linux) : Actual result PHP 5.2.2 (Linux) : Actual result PHP 5.2.3 (Windows): Actual result ------------------------------------------------------------------------ [2007-12-06 23:59:16] jm at wo dot cz Obviously, I meant to say, the problem is with TWO numbers only: 1E-6 and 1E-7. J. ------------------------------------------------------------------------ [2007-12-06 23:55:54] jm at wo dot cz I got the same problem on another machine too, again PHP 5.2.5 with pretty much the same configuration. In fact, the problem exhibits also for version 5.2.4 on my machines. About the unknown configuration options: Thanks, I had seen the warning but did not have the time to edit my scripts and based on the message it seemed harmless to leave the options be for now. I am thinking that the problem and your inability to reproduce it could be due to some libraries that PHP uses that may be buggy in the versions on my systems. Can you please tell me what libraries, if any, to look for? Although the installed version of software are generally the latest stable releases, it is possible that a patch or a downgrade may be in order on some library/tool. Finally, the problem has so far appeared for 3 numbers only: $ php -n -r '$f=array(1E-4, 1E-5, 1E-6, 1E-7, 1E-8); foreach ($f as $fval) echo $fval, "\n";' 0.0001 1.0E-5 :.0E-7 :.0E-8 1.0E-8 Jan ------------------------------------------------------------------------ [2007-12-04 12:33:38] [EMAIL PROTECTED] I can't reproduce either: ]# php -r '$f=1E-6; echo $f, "\n";' 1.0E-6 And pretty much the same configure options. btw. Many of the options you used don't even exist, did you pay attention to the last lines of the output after running configure? (it warns you about unknown options) Try this yourself: # php -n -r '$f=1E-6; echo $f, "\n";' (-n makes sure you don't use any php.ini which might have different precision set) ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/43487 -- Edit this bug report at http://bugs.php.net/?id=43487&edit=1
