[fw-general] ZFW OO coding guideline

[howard chen]

Hello,

It is not a 100% zfw question, but as I am coding under zfw, so I want
if my OO coding is consistent with the zfw.


Example:

I have a Class - MyClass, it is a global functional object, has the
function foo() I need to call in several php files for a single HTTP
request.

============
class MyClass{

    function MyClass () {
        $this->init();
    }

    function &getInstance {
        static $instance;

        if (!isset($instance)) {
            $instance = new MyClass();
        }

        return $instance;
    }

    function init() {
        // Some heavy init codes...
    }

    function foo() {
        // core function
    }

}
============


Which one you prefer:


1. Call as global class:


$data = MyCalss::foo();  // put init() in bootstrap


2. Call as singleton

$myClass =& MyClass::getInstance();
$myClass->foo();

3. Call as new object

$myClass = new MyClass();
$myClass->foo();



which method you prefer?


Thanks.