From: tater at potatoe dot com
Operating system: OS X 10.2
PHP version: 5CVS-2003-08-02 (dev)
PHP Bug Type: Zend Engine 2 problem
Bug description: empty()/isset() misleading with __get/__set
Description:
------------
Given a "property" that is really being handled by __get() and __set()
functions, you are allowed to use it with empty() and isset() without
errors or warnings, but they always report that the property is
empty/not-set.
I understand that this may not be a bug, but a "feature"
of PHP 5 - i.e., just the way it works - but if that is true,
please be kind enough to say so explicitly. It is not helpful
to mark bugs as Bogus with comments like "I suggest you read ZEND_CHANGES
:)"
If it is to be expected, it might be good to throw the
same kind of error that one would see if trying to use
empty() on a function call, if that's possible.
This is possibly related to bug #24436.
Reproduce code:
---------------
class foo
{
private $_x;
private function __get($p) { return $this->_x; }
private function __set($p,$v) { $this->_x = $v; }
}
$y = new foo;
$y->x = 12;
if (empty($y->x))
print "y->x is empty: {$y->x} \n";
else
print "y->x is not empty: {$y->x} \n";
if (isset($y->x))
print "y->x is set: {$y->x} \n";
else
print "y->x is not set: {$y->x} \n";
Expected result:
----------------
y->x is not empty: 12
y->x is set: 12
Actual result:
--------------
y->x is empty: 12
y->x is not set: 12
--
Edit bug report at http://bugs.php.net/?id=24915&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=24915&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=24915&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=24915&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=24915&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=24915&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=24915&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=24915&r=support
Expected behavior: http://bugs.php.net/fix.php?id=24915&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=24915&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=24915&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=24915&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=24915&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=24915&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=24915&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=24915&r=gnused
