#40721 [NEW]: Overload Comparison Problem
| From: | rod at pu-gh dot com | Date: | Mon, 05 Mar 2007 03:00:52 +0000 |
| Subject: | #40721 [NEW]: Overload Comparison Problem | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-109888@lists.php.net to get a copy of this message | ||
From: rod at pu-gh dot com
Operating system: Linux
PHP version: 4.4.6
PHP Bug Type: Scripting Engine problem
Bug description: Overload Comparison Problem
Description:
------------
When overloading a class in php, and then comparing an overloaded property
to the return value of a function call, the result is not what I expected.
If comparing against string literals, or if the result of each is first
assigned to a variable then it's fine.
I tested this with latest CVS of PHP 4.4.7.
Reproduce code:
---------------
<?
class Foo {
function __get( $name, &$value ) {
$value = 'foo';
return true;
}
}
overload( 'Foo' );
class Bar {
function foo() {
return 'bar';
}
}
$foo = new Foo();
$bar = new Bar();
echo 'Test: ' . ( $foo->bar == $bar->foo() ? 'BAD' : 'GOOD' ) .
"\n";
?>
Expected result:
----------------
Expected (meaning the comparsion failed):
Test: GOOD
Actual result:
--------------
Actual (meaning the comparsion 'foo' == 'bar' succeeded):
Test: BAD
--
Edit bug report at http://bugs.php.net/?id=40721&edit=1
--
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=40721&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=40721&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=40721&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=40721&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=40721&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=40721&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=40721&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=40721&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=40721&r=support
Expected behavior: http://bugs.php.net/fix.php?id=40721&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=40721&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=40721&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=40721&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40721&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=40721&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=40721&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=40721&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=40721&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=40721&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=40721&r=mysqlcfg