[PHP-DEV] $this is defined when calling a static method from within an object From: Chuck Hagenbuch (chuck <email protected>)
Date: 01/03/01

While working on Mail_rfc822:: for PEAR, I came across the following scenario:

<?php

error_reporting(E_ALL);

class StaticClass {
    function doSomething() {
        echo $this->data;
    }
}

class Instantiated {
    var $data;
    
    function Instantiated($data) {
        $this->data = $data;
        StaticClass::doSomething();
    }
}

$ob = new Instantiated('foo');

?>

This results in no errors of any kind and the output 'foo';

I would expect $this to be undefined inside static method calls; instead, it
seems to be defined to the $this pointer of the calling object, if you are
indeed calling from within an object.

Is this just a side effect? I think $this should be undefined inside all static
method calls (even if you call a method in the class - you might _want_ static
behavior sometimes), but I don't know how feasible that is, and I'm interested
what Zeev and co. have to say...

-chuck 

--
Charles Hagenbuch, <chuck <email protected>>
"If you can't stand the heat, get out of the chicken!" - Baby Blues

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