#39916 [NEW]: Auto trunkation of floats to ints in array indices should raise a warning

From: thuejk at gmail dot com Operating system: All PHP version: 5.2.0 PHP Bug Type: Feature/Change Request Bug description: Auto trunkation of floats to ints in array indices should raise a warning Description: ------------ As described in http://php.net/manual/en/language.types.array.php "Floats in key are truncated to integer." This is somewhat unintuitive, and caught me the first time I met it. A PHP bug search shows me that other people were surprised too. So to be kind to the programmers, also the ones who doesn't know the manual by heart, I would like to suggest that an E_STRICT error or similar be raised when the truncation is done. Reproduce code: --------------- error_reporting(E_ALL | E_STRICT); $x = 1.6; $y = 1.7; $a = Array(); $a[$x] = 1; $a[$y] = 2; echo $a[$x]; Expected result: ---------------- It prints out "2" in accordance with the manual An E_STRICT is raised, as you are trying to use floats in a place where they do not belong. The E_STRICT error should recommend an explicit cast to int in the code. Actual result: -------------- It prints out "2" in accordance with the manual No E_STRICT error is raised. -- Edit bug report at http://bugs.php.net/?id=39916&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39916&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39916&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39916&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=39916&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=39916&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=39916&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=39916&r=needscript Try newer version: http://bugs.php.net/fix.php?id=39916&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=39916&r=support Expected behavior: http://bugs.php.net/fix.php?id=39916&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=39916&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=39916&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=39916&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39916&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=39916&r=dst IIS Stability: http://bugs.php.net/fix.php?id=39916&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=39916&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=39916&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=39916&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=39916&r=mysqlcfg