PHP 4.0 Bug #2075: Self referential objects can't have more than two references to themselves
| From: | dom at recoil dot org | Date: | Mon, 16 Aug 1999 20:14:26 +0000 |
| Subject: | PHP 4.0 Bug #2075: Self referential objects can't have more than two references to themselves | ||
| Groups: | php.dev | ||
| Request: | Send a blank email to php-dev+get-9894@lists.php.net to get a copy of this message | ||
From: dom@recoil.org
Operating system: linux redhat 5.2
PHP version: 4.0 Beta 2
PHP Bug Type: Other
Bug description: Self referential objects can't have more than two references to themselves
Whenever I try to build a self referential structure,
information is lost after two nodes in the chain.
The following code shows that the structures can never
be more than two nodes deep.
<?
class Test
{
var $next;
function add($next)
{
$this->next = $next;
return $next;
}
function dump()
{
echo "Test!<br>";
$this->next->dump();
}
}
$test = new Test;
$next = $test->add(new Test);
$next = $test->add(new Test);
$next = $test->add(new Test);
$test->dump();
?>
This code causes the following error with both
php3 and php4b2:
Test!
Test!
Fatal error: Call to a member function on a non-object in /home/dom/public_html
/treetest/test.php3 on line 19
Configure line was:
./configure --with-mysql --with-apache=../apache_1.3.6 --enable-track-vars --with-xml