迷ってみたり

例１

<?php
class Employee {

    private $db;
    private $name;
    private $position;

    function __construct(&$db) {
        $this->db =& $db;
    }

    function setName($name) {
        $this->name = $name;
    }

    function setPosition($position) {
        $this->position = $position;
    }

    function create() {
        // create
    }

    function destroy() {
        // destroy
    }

}

$employee = new Employee(DBobj);
$employee->setName('nameA');
$employee->setPosition('regular');
$employee->create();
?>

例2

<?php
class Employee {

    private $name;
    private $position;

    function setName($name) {
        $this->name = $name;
    }

    function setPosition($position) {
        $this->position = $position;
    }

    function create(&$dbobj) {
        // create
    }

    function destroy(&$dbobj) {
        // destroy
    }

}

$employee = new Employee;
$employee->setName('nameA');
$employee->setPosition('regular');
$employee->create(DBobj);
?>

個人的には例2の方が好きなんだけどなあ。