PHP类问题

发布于 2024-09-28 07:25:34 字数 737 浏览 4 评论 0原文

class Gdn {

   const AliasDispatcher = 'Dispatcher';

   protected static $_Factory = NULL;

   public static function Dispatcher() {

      $Result = self::Factory(self::AliasDispatcher);

      return $Result;
   }

   public static function Factory($Alias = FALSE) {

      if ($Alias === FALSE)

         return self::$_Factory;


      // Get the arguments to pass to the factory.
      //$Args = array($Arg1, $Arg2, $Arg3, $Arg4, $Arg5);

      $Args = func_get_args();

      array_shift($Args);

      return self::$_Factory->Factory($Alias, $Args);
   }

}

如果我像 $Dispatcher = Gdn::Dispatcher(); 这样调用 Dispatcher()，返回 self::$_Factory->Factory($Alias, $Args);< /代码> 是什么意思？

原文

class Gdn {

   const AliasDispatcher = 'Dispatcher';

   protected static $_Factory = NULL;

   public static function Dispatcher() {

      $Result = self::Factory(self::AliasDispatcher);

      return $Result;
   }

   public static function Factory($Alias = FALSE) {

      if ($Alias === FALSE)

         return self::$_Factory;


      // Get the arguments to pass to the factory.
      //$Args = array($Arg1, $Arg2, $Arg3, $Arg4, $Arg5);

      $Args = func_get_args();

      array_shift($Args);

      return self::$_Factory->Factory($Alias, $Args);
   }

}

If I call the Dispatcher() like $Dispatcher = Gdn::Dispatcher();, what does return self::$_Factory->Factory($Alias, $Args); mean?

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玻璃人 2024-10-05 07:25:34

这意味着 Dispatcher() 返回一个对象，并且该对象是 Factory() 创建的对象的副本。

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夕嗳→ 2024-10-05 07:25:34

self:: 表示您正在引用当前对象的类
由于工厂是一个递归函数，它将不断调用自身，直到用完参数，然后返回当前工厂类中设置的工厂。

如果你愿意：
“blah->Factory('test1','test2',test3','test4')” 它的运行方式如下：

blah->factory('test1','test2','test3','test4')
    blah->$_Factory->Factory('test1',array('test2','test3','test4'))
        blah->$_Factory->Factory(array('test2','test3','test4'));
            blah->$_Factory->Factory();
           // oh hey, i dont have any arguments, replace it with my default argument 'false' and thus return the factory
            return self::$_Factory;

我不知道为什么你会想要它，但这就是它的作用

self:: means you are refering to the class of the current object
since factory is a recursive function it will keep calling itself until it runs out of arguments and then returns the factory that is set in the current factory class.

if you would do:
"blah->Factory('test1','test2',test3','test4')" it would run like:

blah->factory('test1','test2','test3','test4')
    blah->$_Factory->Factory('test1',array('test2','test3','test4'))
        blah->$_Factory->Factory(array('test2','test3','test4'));
            blah->$_Factory->Factory();
           // oh hey, i dont have any arguments, replace it with my default argument 'false' and thus return the factory
            return self::$_Factory;

i dont know WHY you would want it, but this is what it does

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