Yii框架模擬組件調(diào)用注入示例

'components'  => array(
  '組件調(diào)用名'  =>  '組件調(diào)用命名空間',
  '組件調(diào)用名'  => array(
      'class' => '組件調(diào)用命名空間'
  );
  '組件調(diào)用名'  => function(){
    return new '組件調(diào)用命名空間';
  }
)

?php
namespace app\components\Services;
/**
 * 自定義服務(wù)層調(diào)用組件
 * 支持 的實例模式只有yii模式的string 和 array 模式
 * 例子
 * services => array(
 *   'customService' => array(
*        'class' => 'app\components\Custom\Custom',
*        'name' => '我是勇哥'
*      ),
 * )
 */
class Services
{
  private $dataObj = array();
  private $classes = array();
  public function __set($name,$value)
  {
    $this->classes[$name] = $value;
  }
  public function __get($name)
  {
    if(!isset($this->dataObj[$name]) || $this->dataObj[$name] == null)
    {
      $classInfo = $this->classes[$name];
      $this->dataObj[$name] = is_array($classInfo) ? (new $classInfo['class']) : (new $classInfo);
      if(is_array($classInfo))
        foreach($classInfo as $a=>$b)
          if($a != 'class')
            $this->dataObj[$name]->$a = $b;
    }
    return $this->dataObj[$name];
  }
}

'components'=>array(
  'services' => array(
    'class'  =>  'app\components\Services\Services',
    //自定義服務(wù) custom1
    'custom1Service' => array(
      'class' => 'app\services\Custom1\Custom1',
      //需要注入的屬性值
      'name'  => '我是勇哥',
      'age'  => 22
    ),
    //自定義服務(wù) custom2
    'custom2Service' => array(
      'class' => 'app\services\Custom2\Custom2',
      //需要注入的屬性值
      'name'  => '我是勇哥',
      'age'  => 22
    ),
  )
)

?php
namespace app\controllers\home;
use Yii;
use yii\web\Controller;
class IndexController extends Controller
{
  public function actionIndex()
  {
    echo Yii::$app->services->custom1Service->name;
  }
}