我正在使用匿名函数,我在对象之外创建匿名函数,然后将其添加到稍后将使用__callStatic魔术函数的对象.正在添加的包含父类的方法的闭包.我想知道我是否能够从关闭中调用这些方法？
现在我得到这个错误：
EmptyObject::addMethod('open',function(){
if (static::_hasAdapter(get_class(),__FUNCTION__))
return self::_callAdapter(get_class(),__FUNCTION__,$details);
echo '<p>You have mail!</p>';
});
抛出这个错误：
Fatal error: Cannot access static:: when no class scope is active in
和
//Add the functions
EmptyObject::addMethod('open',function(){
if (EmptyObject::_hasAdapter('EmptyObject',__FUNCTION__))
return EmptyObject::_callAdapter('EmptyObject',$details);
echo '<p>You have mail!</p>';
});
Fatal error: Uncaught exception ‘BadMethodCallException’ with message ‘Method ‘_hasAdapter’ was not found in class EmptyObject’
您可以使用
Closure::bind()(PHP> = 5.4.0)
abstract class EmptyObject
{
protected static $methods = array();
final public static function __callStatic($name,$arguments)
{
return call_user_func(self::$methods[$name],$arguments);
}
final public static function addMethod($name,$fn)
{
self::$methods[$name] = Closure::bind($fn,NULL,__CLASS__);
}
final protected static function protectedMethod()
{
echo __METHOD__ . " was called" . PHP_EOL;
}
}
现在传递给EmptyObject :: addMethod()的任何匿名函数都将在EmptyObject类的范围内运行
EmptyObject::addMethod("test",function()
{
self::protectedMethod();
});
// will output:
// EmptyObject::protectedMethod was called
EmptyObject::test();
