danci/www.hanlinyuanonline.com/Application/Common/Controller/AdminController.class.php

<?php
namespace Common\Controller;
use Think\Controller;
class AdminController extends Controller {
    public function __construct(){
        parent::__construct();
	   $admin_id = session('admin_id');
        if(empty($admin_id)){
            $this->error("登录超时，请重新登录",'/admin/login/index');
        }
        $this->assign('className',CONTROLLER_NAME);
        $this->assign('funcName',ACTION_NAME);
    }
    public function uploadFile($rootPath) {
        $upload = new \Think\Upload();// 实例化上传类
        $upload->maxSize   =     3145728 ;// 设置附件上传大小
        $upload->exts      =     array('jpg', 'gif', 'png', 'jpeg');// 设置附件上传类型
        $upload->rootPath  =     $rootPath; // 设置附件上传根目录
        $upload->saveName   =    array('uniqid','');
        $upload->autoSub = true;                      //是否使用子目录保存上传文件
        $upload->subType = 'date';                      //子目录创建方式，默认为hash，可以设置为hash或者date
        $upload->dateFormat = 'Ym';                     //子目录方式为date的时候指定日期格式
        $info   =   $upload->upload(array($_FILES['file_data'])); // 上传文件
        return $info;
    }

    //获取单词释义字符串
    public function getWordsText($row){
        $str = '';
        $wordsKeys = array('words_n','words_pron','words_adj','words_num','words_v','words_adv','words_art','words_prep','words_conj','words_int','words_vt','words_vi','words_other',);
        foreach ($wordsKeys as $key){
            if (!empty($row[$key])){
                $arr = explode('_', $key);
                $str .= $arr[1].'.'.$row[$key];
            }
        }
        return $str;
    }
}