From:
Operating system: Windows
PHP version: 5.3.2
Package: Class/Object related
Bug Type: Bug
Bug description:property_exists now wrong
Description:
------------
Now that property_exists returns true for all private properties, there is
no way (I know) to test that a property is private before writing to it and
causing a fatal error.
The previous behaviour was wrong - private properties that are in scope
should return true - but the new code is worse.
See Bug #50810: property_exists does not work for private
I think property_exists should return true for writable properties...
which implies a scope...
if the user coded $this then the scope is the current scope.
If the use gives a class name, then the scope is that class.
I have not managed to re-code the routine below to work in 5.3.0 (let alone
both 5.3.? and 5.2.?).
Test script:
---------------
public function setField($fld, $value) {
// set the fld to the value
if (property_exists($this,$fld)) {
$this->$fld = $value; // handles public and protected fields
return;
}
$this->setMapped($fld,$value); // for private vars.
}
Create a class with the above function. Create a sub-class with a private
variable. Call it on the sub-class with fldname and value.
In 5.3.0 this crashes with a fatal error.
In 5.2.9 it calls setMapped.
--
Edit bug report at http://bugs.php.net/bug.php?id=51479&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51479&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51479&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51479&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51479&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51479&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51479&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51479&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51479&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51479&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51479&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51479&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51479&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51479&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51479&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51479&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51479&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51479&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51479&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51479&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51479&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51479&r=mysqlcfg
