#45410 [Bgs]: Bad result in an expression evaluation

ID: 45410 User updated by: ensnnet at gmail dot com Reported By: ensnnet at gmail dot com Status: Bogus Bug Type: Unknown/Other Function Operating System: windows xp sp3 PHP Version: 5.2.6 New Comment: Thanks, I was wrong (sorry for my insistence). Assignement (=) is done before the and/or opperation but the &&/|| opperation is done before the assignement (=). Thanks very much for your attention and explanation. Previous Comments: ------------------------------------------------------------------------ [2008-07-14 11:22:57] mgf@php.net *Please* look at Example 1 at http://php.net/operators.logical, as requested by colder - this demonstrates your example exactly and shows that what you're getting is the expected result. The operator precedence table at http://php.net/operators#language.operators.precedence (also previously referred to) may also help. This is *not* a bug, so don't add to this conversation. If you need further explanation, please ask in the support forums (such as php-general@lists.php.net). ------------------------------------------------------------------------ [2008-07-11 17:59:03] ensnnet at gmail dot com Te answer on my machine for the previous code is: Here l1 and l2 is: bool(false) But here l1 and l2 is: bool(true) And here l2 and l1 is: bool(false) What happens? ... And I think it must be false in all the three cases !! Thanks in advance for your attention, jaz ------------------------------------------------------------------------ [2008-07-11 17:55:55] ensnnet at gmail dot com Sorry by I still I think something is wrong. Please take a while to see the next code (or run it on your machine): <?php $l1 = true; $l2 = false; $l1_and_l2 = $l1 and $l2; $l2_and_l1 = $l2 and $l1; echo "<pre>"; echo "Here l1 and l2 is: "; var_dump($l1 and $l2); echo "But here l1 and l2 is: "; var_dump($l1_and_l2); echo "And here l2 and l1 is: "; var_dump($l2_and_l1); echo "What happens?"; echo "</pre>"; ?> ------------------------------------------------------------------------ [2008-07-02 21:32:31] colder@php.net Please take a look at the examples on php.net/operators.logical ------------------------------------------------------------------------ [2008-07-02 19:03:39] johannes@php.net Please see the operator precedence table and explanation on the page I ahve given, somewhere in the upper area are "&&", "||" and so on, then "=" and in the bottom "and", "or", "xor" which means the assignment is done before the "and" operator is executed. For further questions please refer to other support forums, see http://php.net/support.php ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/45410 -- Edit this bug report at http://bugs.php.net/?id=45410&edit=1