From: iam at nimajneb dot com
Operating system: Mac OSX 10.2.6
PHP version: 4.3.2
PHP Bug Type: Math related
Bug description: Logical Operator "and" not functioning as expected
Description:
------------
Result of 'and' operator not what is expected. 1 and 0 and 1 => 1? Should
be 0. See attached code sample. '&&' operator does function correctly
however.
Reproduce code:
---------------
$primary_err_valid = (($_POST['primary_err'] != "category") and
($_POST['primary_err'] != "separator"));
$secondary_err_valid = (($_POST['secondary_err'] != "category") and
($_POST['secondary_err'] != "separator"));
$tertiary_err_valid = (($_POST['tertiary_err'] != "category") and
($_POST['tertiary_err'] != "separator"));
$error_valid = ($primary_err_valid) and ($secondary_err_valid) and
($tertiary_err_valid);
echo "Pri: $primary_err_valid <br>";
echo "Sec: $secondary_err_valid <br>";
echo "Tri: $tertiary_err_valid <br>";
echo "Total Error: $error_valid <br>";
Expected result:
----------------
Pri: 1
Sec:
Tri: 1
Total Error:
Actual result:
--------------
Pri: 1
Sec:
Tri: 1
Total Error: 1
--
Edit bug report at http://bugs.php.net/?id=26122&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26122&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26122&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=26122&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=26122&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=26122&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=26122&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=26122&r=support
Expected behavior: http://bugs.php.net/fix.php?id=26122&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=26122&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=26122&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=26122&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26122&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=26122&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=26122&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=26122&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=26122&r=float
