Do I allways need to use $this-> in...

Anon

I am familiarising myself with PHP classes and would like to know this:
When writing a class, do I need to use $this-> to refer every single variable in the class? Or are there times when I can use just the $ operator? Because I am writing a class which has a small algorithm in it and would find it tedious if I had to use $this-> for every variable.
Cheers!

Steve.

[deleted]

you must use the $this-> to reference any property of the class.

But, you don't have to use $this-> if you just want to use a var to work with:

class test
{
var $prop;
function a()
{
$prop = 1; // this is a var that only exists inside this function
$this->prop = 2; // this is a property of the current object
echo $prop;
echo $this->prop;
}

function b()
{
echo $prop;
echo $this->prop;
};
}

$myclass = new test();
$myclass->a();
$myclass->b();

Anon

Brilliant! Just what I wanted to know! Thank You! :=)

Anon

Would it be possible to refer to a class property like so:
$result = $this->$result;
So that I could work with the value of $this->result. Then at the end of the method assign the new value of $result back to $this->result? I.E.
$this->result = $result;
Cheers again!

Anon

um, i think this is what you want:

$this->result = & $result;

[deleted]

Carefull.
What that does is make a reference.
References are extremely cool, but can be tricky.

$this->result = &$result;

will make $this->result point to $result.

This means they will constantly take eachothers value.
Change one, you change the other.

In your case, you'd be better of to take the value

$result = $this->result;

then process it, and put it back in

$this->result = $result;

That is, if you have a serious problem with typing $this-> all the time :-)

Anon

Cheers for that! I wasn't too keen on creating aliases, and my class uses many, many instances of several variables. So it is much quicker to use, and see, the variables without $this-> preceding them!

Thanks again!!!