Re: [PHP-DEV] __get() and __set() in PHP 5

[Andi Gutmans]

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

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