Bug #64038 [NEW]: number_format isn't correct with big numbers

From: nicolas dot giraud at actiane dot com Operating system: PHP version: Irrelevant Package: Unknown/Other Function Bug Type: Bug Bug description:number_format isn't correct with big numbers Description: ------------ The number_format function don't give the good result with good format, maybe because of cast in float that kills precision. Test script: --------------- <?php $number = '123456789012345678901234567890'; $formatted = number_format($number, 2, '.', ' '); echo $formatted; ?> Expected result: ---------------- 123 456 789 012 345 678 901 234 567 890.00 Actual result: -------------- 123 456 789 012 345 660 285 533 552 640.00 -- Edit bug report at https://bugs.php.net/bug.php?id=64038&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=64038&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=64038&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=64038&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=64038&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=64038&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=64038&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=64038&r=needscript Try newer version: https://bugs.php.net/fix.php?id=64038&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=64038&r=support Expected behavior: https://bugs.php.net/fix.php?id=64038&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=64038&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=64038&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=64038&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64038&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=64038&r=dst IIS Stability: https://bugs.php.net/fix.php?id=64038&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=64038&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=64038&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=64038&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=64038&r=mysqlcfg