Bug #60402 [NEW]: "0.0" (0.0 as a string) values are considered as not empty

From: Operating system: Windows/Linux PHP version: 5.3.8 Package: *General Issues Bug Type: Bug Bug description:"0.0" (0.0 as a string) values are considered as not empty Description: ------------ Hi PHP team. For empty() we have the following rule : The following things are considered to be empty: "" (an empty string) 0 (0 as an integer) 0.0 (0 as a float) "0" (0 as a string) But values like "0.0" are cosidered as not empty for example : $zeroFloatString = "0.0"; (0.0 as a string) var_dump(empty($zeroFloatString)); prints false . However the $zeroFloatString contains "0.0" value. Thanks, Anton Test script: --------------- $emptyString = ""; (an empty string) $zeroInt = 0; (0 as an integer) $zeroFloat = 0.0; (0 as a float) $zeroString = "0"; (0 as a string) $zeroFloatString = "0.0"; (0.0 as a string) var_dump(empty($emptyString)); true var_dump(empty($zeroInt)); true var_dump(empty($zeroFloat)); true var_dump(empty($zeroString)); true var_dump(empty($zeroFloatString)); false Expected result: ---------------- bool(true) bool(true) bool(true) bool(true) bool(true) Actual result: -------------- bool(true) bool(true) bool(true) bool(true) bool(false) // var_dump(empty($zeroFloatString)) where $zeroFloatString = "0.0" -- Edit bug report at https://bugs.php.net/bug.php?id=60402&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=60402&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=60402&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=60402&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=60402&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=60402&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=60402&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=60402&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=60402&r=needscript Try newer version: https://bugs.php.net/fix.php?id=60402&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=60402&r=support Expected behavior: https://bugs.php.net/fix.php?id=60402&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=60402&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=60402&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=60402&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=60402&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=60402&r=dst IIS Stability: https://bugs.php.net/fix.php?id=60402&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=60402&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=60402&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=60402&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=60402&r=mysqlcfg