On Sun, 2009-03-01 at 09:48 -0500, tedd wrote:
> At 9:21 AM -0500 3/1/09, Robert Cummings wrote:
> >On Sun, 2009-03-01 at 08:36 -0500, tedd wrote:
> >>  The OP asked:
> >>
> >>  >Is there in PHP something like "use strict" from perl? I find it pretty
> >>  >annoying to need to run script over and over again just to find out that 
> >> I
> >>  >made typo in variable name.
> >>
> >>  And I've been waiting for an answer myself, but I haven't seen one.
> >>
> >>   From what I remember, in perl if you use "use strict;" it requires to
> >>  to define your variables (my) before using them. If you make a
> >>  variable typo in your code, then you'll trigger an error when you try
> >>  to run it.
> >>
> >>   From what I've seen of php, even with using strict error reporting,
> >>  you can do that all day long without generating an error.
> >>
> >>  So the answer appears to be "No, you can't do that in PHP." Is 
> >>that the answer?
> >
> >You can do anything you want... :)
> Rob:
> Just to show that your words of wisdom don't go unnoticed, see here:
> http://php1.net/oop/strict/
> That's pretty slick.
> Now if I only understood WT* you did, I would be a better programmer for it.

I used the magic methods __set() and __get() to facilitate error
handling. These methods fire when a property is not accessible. So when
the property does not exist these will fire. So first we init the
properties when we create an instance (I'll discuss this shortly)... to
init them we are setting them, this fires the __set() method... but
since we check the value of the private ___init property, we don't fire
an error in this instance. Future requests for the properties will not
incurr a hit to __set() or __get() as long as the property is defined.
If it is not defined then voila, the error fires and we die (we could do
anything such as fire an exception but I just die for the example).

With respect to initialization I use func_get_args() so that an
arbitrary number of parameters can be passed to the constructor. This is
useful since we don't know the number of properties. I also check if an
argument is an array. If it is an array then I treat it as a property
with an initialized value and create and set the property accordingly.

That's all there is to it.

Application and Templating Framework for PHP

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