#44179 [Bgs]: Ternary Operator Does Not Accept Alpha Logical Operators

From: Date: Wed, 20 Feb 2008 14:03:20 +0000
Subject: #44179 [Bgs]: Ternary Operator Does Not Accept Alpha Logical Operators
References: 1  Groups: php.bugs 
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ID: 44179 User updated by: rpanning at hotmail dot com -Summary: Ternary Operator Does Not Accept Text Logical Operators Reported By: rpanning at hotmail dot com Status: Bogus Bug Type: Unknown/Other Function Operating System: XP Pro SP2 PHP Version: 5.3CVS-2008-02-20 (snap) New Comment: Why does the operator precedence matter? They still don't work. Shouldn't "and" function the same as "&&"? The only time operator precedence would matter is if there were multiple operators in the expression. In this example there is only one for each expression, so operator precedence shouldn't come into play. Previous Comments: ------------------------------------------------------------------------ [2008-02-20 05:11:23] rasmus@php.net Please check the operator precedence documentation. The whole point of 'and', 'or' and 'xor' is that they are right at the bottom of the precedence table. Only the ',' operator is below them. See: http://php.net/manual/en/language.operators.php ------------------------------------------------------------------------ [2008-02-20 04:30:35] rpanning at hotmail dot com Description: ------------ It seems that the ternary conditional operator does not accept the text logical operators (and, or, xor). They assign int 1 instead of the other expressions. The xor is even odder in that if the TRUE comes before the xor, it will not assign anything. If it is the reverse, it will assign int 1. Tested this with both PHP 5.2.5 and the latest snap of 5.3. Don't believe this is the expected behavior. Reproduce code: --------------- $and = (TRUE and TRUE ? 'True' : 'False'); $or = (FALSE or TRUE ? 'True' : 'False'); $xor = (TRUE xor FALSE ? 'True' : 'False'); $aa = (TRUE && TRUE ? 'True' : 'False'); $ll = (TRUE || FALSE ? 'True' : 'False'); print('and = ' . $and . "<br>\r\n"); print('or = ' . $or . "<br>\r\n"); print('xor = ' . $xor . "<br>\r\n"); print('&& = ' . $aa . "<br>\r\n"); print('|| = ' . $ll . "<br>\r\n"); Expected result: ---------------- and = True<br> or = True<br> xor = True<br> && = True<br> || = True<br> Actual result: -------------- and = 1<br> or = 1<br> xor = <br> && = True<br> || = True<br> ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=44179&edit=1

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