overloading variables in child classes
| From: | Alain Dresse | Date: | Sat, 27 Oct 2001 19:12:09 +0000 |
| Subject: | overloading variables in child classes | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-72577@lists.php.net to get a copy of this message | ||
Hi all,
I am a bit puzzled by the way PHP treates variables that have the same name
in a base class and a child class.
It seems to me that if a child class and its parent both have a variable
with the same name, then they should be different variables. Instead, the
example below indicates that they is only one variable :
----
class base {
var $shared;
function base() {$this->shared = "base";}
function test() {echo("\$shared in base : " . $this->shared .
"<br>\n");}
}
class child extends base {
var $shared;
function child(){$this->base(); $this->shared = "child";}
function test() {
echo ("\$shared in child : " . $this->shared . "<br>\n");
parent::test();
}
}
$the_child = new child();
$the_child->test();
----
I would have expected the output to be
$shared in child : child
$shared in base : base
instead I have
$shared in child : child
$shared in base : child
Is there something I don't understand ?
Regards,
Alain Dresse
adresse@brutele.be