#49817 [NEW]: round() couldn't handle german floats with comma

From: wojtech at sam-germany dot de Operating system: Windows XP SP2 PHP version: 5.2SVN-2009-10-09 (snap) PHP Bug Type: Math related Bug description: round() couldn't handle german floats with comma Description: ------------ The problem is known, but the result can't be the last answer. I must calculate the body mass index for my company. Yesterday I registered rounding errors between 0.1 and 0.3. The problem: german doctors declares weight as "63,3" and not as "63.3". It was my fault trusting in PHPs typecasting. BUT: why trying typecasting a stupid string, so round() gives a "correct" answer? I except returning FALSE, if the given parameter contains something else than "0-9" and ".". Reproduce code: --------------- $var = "German doctors don't know the point."; print round($var, 1); $var = "3 german doctors dont't know the point."; print round($var, 1); $var = "3,467"; print round($var, 1); $var = "3.465"; print round($var, 1); Expected result: ---------------- FALSE FALSE FALSE 3,5 Actual result: -------------- 0 3 3 3.5 -- Edit bug report at http://bugs.php.net/?id=49817&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49817&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49817&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49817&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49817&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49817&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49817&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49817&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49817&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49817&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49817&r=support Expected behavior: http://bugs.php.net/fix.php?id=49817&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49817&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49817&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49817&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49817&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49817&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49817&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49817&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49817&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49817&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49817&r=mysqlcfg