#42136 [NEW]: filter_var() fails for "0"

From: gnupun at yahoo dot com Operating system: Windows XP PHP version: 5.2.3 PHP Bug Type: Filter related Bug description: filter_var() fails for "0" Description: ------------ filter_var() design is broken... the following code always returns FALSE: filter_var() obviously needs two outputs: the filtered value and a success/failure code. ($value, $errcode) = filter_var(... Reproduce code: --------------- $myint = "0"; if (!filter_var($myint, FILTER_VALIDATE_INT)) { echo "$myint is not an integer\n"; } else { echo "$myint is an integer\n"; } Expected result: ---------------- 0 is an integer Actual result: -------------- 0 is not an integer -- Edit bug report at http://bugs.php.net/?id=42136&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=42136&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=42136&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=42136&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=42136&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=42136&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=42136&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=42136&r=needscript Try newer version: http://bugs.php.net/fix.php?id=42136&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=42136&r=support Expected behavior: http://bugs.php.net/fix.php?id=42136&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=42136&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=42136&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=42136&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42136&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=42136&r=dst IIS Stability: http://bugs.php.net/fix.php?id=42136&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=42136&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=42136&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=42136&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=42136&r=mysqlcfg