next »

[jammaster82]

Ok, thanks... so this thing is monkey rigged? it actually works...

so in the doparse() below where they call

$this->q->add($c, &$this);

the ampersand is redundant and that just calling

$this->q->add($c, $this); would be the same?

Code:

class Parser {
    function doparse()
{
//                                               
//                                  +-------> are you saying they dont need the &$this here?
//                                  | and that $this would pass by reference anyway?
//                                  v     
              $this->q->add($c, &$this);
}

class Q extends N {
       var $t;
       var $s;
       var $st;
       function add($x, & $parser) {
                if ($x == '_'&&$this->t!='b') {
                       $d = $parser->readahead();
                       if ($d == '_') {
                               $this->t = 'b';
                       }
                }
               
                return $parser->setstate('c', $this);
        }
}  // end class q

[perkiset]

In PHP4, most things were passed by value by default: but I thought that objects were passed by reference no matter what. I only ever really saw wide use of explicit passing by reference used for arrays in PHP4.

In any case, in PHP5 objects are CERTAINLY passed by reference, so yes, the & would be redundant.

[jammaster82]

okay thanks... makes a little bit more sense to know that was funky and to now know why...   

and finally,

I see private , protected and public is there no 'published' ?

[perkiset]

No, because the notion of published was for usage in IDEs like Delphi. Published was actually a Borland extension to the spec so that you could have drag/dropable objects with methods and events that would show in the object inspector.

Everything is public by default, so exposure-unspecified vars and functions will be public. Private and protected work as you would expect. Checkout the magic methods for more fun and entertainment: http://us2.php.net/manual/en/language.oop5.magic.php

Note that __get and __set are underused for a reason: they sort of suck compared to a real early-bind OO implementation.