Re: Strange class behavior

Hi Harsanyi! On Wed, 19 Jul 2000, Harsanyi Alexandru wrote: > > Hi, > > I'm relatively new to PHP and I got stuck at using classes and objects > in PHP. > > Here is an example: > --------------------- > <html> > <head></head> > <body> > <?php > class node > { > var $id, $name; > > function node($theId, $theName) > { > $this->$id = $theId; > $this->$name = $theName; > } > } > > $n = new node(1, "some_node"); > > echo "Node id is: " . $n->$id; > ?> > </body> > </html> > -------------------------- > > A class is declared with an $id and a $name members. The constructor > initializes them. > > However, when I run the script, I get the following ansver: > > Node id is: some_node > > although I referenced $n->$id, which was initialized in the constructor > to 1. > > What am I missing here? $id as a member is referenced using $this->id not $this->$id syntax. > BTW, what does the "var" keyword do? nothing, you can remove it if you like :) , really > If I remove the "var" line I don't > notice any difference.... well, remove the contructor too, make another class instace and you'll see the diff. -- teodor