ci框架文件上传

控制器类代码

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Upload extends CI_Controller {

	public function index()
	{
		$this->load->view('up');
	}

	function up(){
		if(!empty($_POST['sub'])){
			$file=$_FILES['upfile'];
			if($file['size']>=200000){
				echo 'size no';
			}
			else{
				switch ($file['type']){
					case 'image/png':
						$hou='.png';
					break;
					default:
						$hou=false;
					break;

				}
				if($hou){
					$time=time();
					move_uploaded_file($file['tmp_name'], "./upload/$time$hou");

				}
				else{
					echo 'type no';
				}
			}
		}
	}
	function up1(){
		$config['upload_path']='./upload';
		$config['allowed_types']='gif|jpg|png';
		$config['max_size']='2000';
		$this->load->library('upload',$config);
		if($this->upload->do_upload('upfile')){
			$data=array('upload_data'=>$this->upload->data());
			var_dump($data);
		}
		else{
			$error=array('error'=>$this->upload->display_errors());
			var_dump($error);
		}

	}
}