<?PHP
// File kITchen.PHP
namespace Kitchen;
?>

命名空间使您可以非常轻松地为项目中的任何类创建自动加载器,因为您可以直接在调用中包含类的路径.

伪代码名称空间示例.

<?PHP 
// Simple auto loader translate \rooms\classname() to ./rooms/classname.PHP
spl_autoload_register(function($class) {
    $class = str_replace('\\','/',$class);
    require_once('./' . $class . '.PHP');
});

// An example class that will load a new room class
class rooms {
    function report()
    {
        echo '<PRe>' . print_r($this,true) . '</pre>';
    }

    function add_room($tyPE)
    {
        $class = "\\rooms\\" . $type;
        $this->{$type}  = new $class();
    }
}

$rooms = new rooms();
//Add some rooms/classes
$rooms->add_room('bedroom');
$rooms->add_room('bathroom');
$rooms->add_room('kitchen');

然后在你的./rooms/文件夹中你有3个文件：
bedroom.PHP
bathroom.PHP
kitchen.PHP

<?PHP 
namespace rooms;

class kitchen {
    function __construct()
    {
        $this->type = 'Kitchen';
    }
    //Do something
}
?>

然后报告类加载的类

<?PHP
$rooms->report();
/*
rooms Object
(
    [bedroom] => rooms\bedroom Object
        (
            [type] => Bedroom
        )

    [bathroom] => rooms\bathroom Object
        (
            [type] => Bathroom
        )

    [kitchen] => rooms\kitchen Object
        (
            [type] => Kitchen
        )

)
*/
?>

希望能帮助到你