zanematthew / zm-dependency-container

A small class used for dependency injection.

Usage

1. Init your class and pass in the dependency container: $my_class = new Some_Class( new ZM_Dependency_Container( null ) );
2. In your __construct() pass in the instance: public function __construct( ZM_Dependency_Container $di )
3. Within your __construct() call the needed class: $this->_other_class = $di->get_instance( 'other_class', 'Other_Class', null );

Full example:

Class Lamp {
    public function __construct( ZM_Dependency_Container $di ){
        $this->_switch = $di->get_instance( 'switch', 'Switch_Class', null );
    }


    public function turn_on(){
        return $this->_switch->on();
    }
}
$lamp_obj = new Lamp( new ZM_Dependency_Container( null ) );

Class Flash_Light {

    // stuff

    public function turn_on(){
        return $this->_switch->on();
    }
}
$flash_light_obj = new Flash_Light( new ZM_Dependency_Container( null ) );