Hi, Wednesday, October 1, 2003, 9:00:18 AM, you wrote: GH> I'm working for the first time with object orientated programming in php and GH> I can't figure out how to access elements or methods when you place objects GH> inside objects inside other objects.
GH> my origonal idea was to use the following syntax: $a->>b->c GH> but this just returns: $a->>b . "->c" GH> Please, need advice on the finer points of OOP in PHP if you have this class a { var $var_a = 'A'; function a ($var){ $this->$var_a = $var; } function get_var(){ return $this->var_a; } } class b { var $a = ''; function b ($var){ $this->$a = new a($var); } function get_var(){ return $this->a->get_var(); } } $class_b = new b("Hello'); You can access class a directly with $class_a_var = $class_b->a->var_a; but this relies on you knowing the structure of your classes. (note we drop the $ after the ->) What is better is to use the black box method and make access functions in each class and do $class_a_var = $class_b->get_var(); This way we can change how class a works and not worry about how it stores its data. With this method if we change the variable name in class a to $new_a the code will still work, where as $class_b->a->var_a will now fall in a heap. Hope this helps -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php