__get() and __set() in PHP 5 View as Markdown

Yes, you are right. They only work if the variable is not defined.

Andi

At 08:03 PM 12/7/2003 +0100, Paul Hudson wrote:

All,

I've been poking around with these two functions while testing the build from
CVS, and am not sure how they're supposed to work. From what I can gather,
they are only called when changing a variable that wasn't in the class
definition. I say that because I took the example script from
http://uk.php.net/zend-engine-2.php and stripped it down to this:

<?php
class Setter {
public $n;
public $z;

    function __get($nm) {
            print "Getting [$nm]\n";
    }

    function __set($nm, $val) {
            print "Setting [$nm] to $val\n";
    }

}

$foo = new Setter();
$foo->n = 1;
$foo->z++;
$foo->z++;
?>

That script outputs nothing, despite reading and writing to z twice, and
writing to n once. If you comment out the "public $n;" and "public $z;"
lines, you get the following output:

Setting [n] to 1
Getting [z]
Setting [z] to 1
Getting [z]
Setting [z] to 1

... which is what I was expecting.

Are __get() and __set(), then, only supposed to work with non-declared
variables, or am I doing something wrong?

Thanks,

--Paul