Re: object-overloading: why not allow recursive calls? (5.1) hey, in zend_object_handlers.c function zend_std_read_property we protect against
calling the __get function of an object if we're already in a __get() function. (look for

Thies, I think I might be wrong in my analysis. Seems like the problem is worse than what I thought as it seems to cross boundaries between classes. We'll look into it more. Andi At 02:15 PM 11/9/2005, Andi Gutmans wrote:

This is intentional and I think it makes it much more fool-proof for developers. Adding recursion protection can be very expensive and complicated, and it doesn't seem to make sense here. The idea is that once you're in the __get() method, you know exactly how your properties are mapped and can do the right thing. It's only this one method where you have your mapping anyway, not an entirely different place. Andi At 12:35 AM 11/4/2005, Thies C. Arntzen wrote:

hey, in zend_object_handlers.c function zend_std_read_property we protect against calling the __get function of an object if we're already in a __get() function. (look for zobj->in_get) in that function. i don't think we should be doing this. simplyfied example: <?php class test {

    function __get($offset) {
        echo "__get($offset)\n";
        switch ($offset) {
            case 'name': return "name";
            case 'length': return strlen($this->name);
        }
    }

} $a = new test; var_dump($a->length); ?> outputs: __get(length) int(0) but should say: __get(length) __get(name) int(4) i think recursive gets are highly useful and should be allowed. if we really want to protect against recursion (here) we have two real options: -a- protect against __get(ing) the same property more than once in the same call-chain (mucho work), or -b- (preferred) have some global infinite recursion protection in the engine (needs to be done somewhen anyhow, but not now). so, in one sentence: as we don't protect against recustion elsewhere, can we please remove this unneded roadblock? opinions? -thies -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php

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