From: jamie at sailor dot org dot uk
Operating system: Win2K
PHP version: 4.3.4
PHP Bug Type: Class/Object related
Bug description: Redefined property in child class modified out of context in parent
class
Description:
------------
I define variable A within parent class cFoo, and initialise it within the
class Constructor.
I redefine variable A within child class cBar, and initialise it within
the class Constructor which then calls the parent class Constructor.
The parent constructor modifies the child instance of property A rather
than the parent instance.
Reproduce code:
---------------
<?php
/* Inheritance test2. Inherited Vars */
class cFoo
{
var $A;
function cFoo() /* constructor */
{
$this->A = "cFoo_A";
}
function Display()
{
print("Within cFoo::Display; property A = '$this->A'; should be
'cFoo_A'<br>\n");
}
};
class cBar extends cFoo
{
var $A; // redefines A
function cBar() /* constructor */
{
$this->A = "cBar_A";
$this->cFoo(); /* parent constructor */
}
function Display()
{
print("Within cBar::Display; property A = '$this->A'; should be
'cBar_A'<br>\n");
}
};
$foo1 = new cFoo;
$foo1->Display();
$bar1 = new cBar;
$bar1->Display();
exit;
?>
Expected result:
----------------
Within cFoo::Display; property A = 'cFoo_A'; should be 'cFoo_A'
Within cBar::Display; property A = 'cBar_A'; should be 'cBar_A'
Actual result:
--------------
Within cFoo::Display; property A = 'cFoo_A'; should be 'cFoo_A'
Within cBar::Display; property A = 'cFoo_A'; should be 'cBar_A'
--
Edit bug report at http://bugs.php.net/?id=26921&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26921&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26921&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=26921&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=26921&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=26921&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=26921&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=26921&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=26921&r=support
Expected behavior: http://bugs.php.net/fix.php?id=26921&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=26921&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=26921&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=26921&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26921&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=26921&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=26921&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=26921&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=26921&r=float
