PHP中无法调用控制器

我在页面用异步上传，准备上传图片

页面中是直接调用到控制下的upload功能，然后upload功能再调用一个hhhh的功能，但是一直跳转不成功，用断点测试，根本就跳不进upload这个功能，日志提示 PHP Fatal error: Call to undefined function hhhh() in D:\wamp\apps\p1weixin\Cms\Lib\Action\Wap\NewsAction.class.php on line 156

	public function upload(){	$path = "/uploads/news/" . date("Ymd");$extArr = array("jpg", "png", "gif");if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST"){    $name = $_FILES['photoimg']['name'];    $size = $_FILES['photoimg']['size'];    if(empty($name)){        echo '请选择要上传的图片';        exit;    }// echo "here1";exit();    // echo $name;exit();    $ext = hhhh($name);    echo "here2";exit();    if(!in_array($ext,$extArr)){        echo '图片格式错误！';        exit;    }    if($size>(5*1024*1024)){        echo '图片大小不能超过5M';        exit;    }    $image_name = time().rand(100,999).".".$ext;    $tmp = $_FILES['photoimg']['tmp_name'];    if(move_uploaded_file($tmp, $path.$image_name)){        echo '';    }else{        echo '上传出错了！';    }    exit;}	}//获取文件类型后缀	// public function indexpublic function hhhh($file_name){ 	echo "here1";exit();    $extend = pathinfo($file_name);    $extend = strtolower($extend["extension"]);    return $extend;}

是我得把这段代码写成一个类吗？还是可以放到一个控制器中

回复讨论(解决方案)

$ext = $this->hhhh($name);

$ext = $this->hhhh($name);