CodeigniterPHP多图片上传-PHP源码

CodeigniterPHP多图片上传-PHP源码

Codeigniter PHP 多图片上传

1、HTML

   


    



  2、CSS
  
/**多图片显示区**/
.case_list{margin:15px 20px;_margin:15px;}
 .case_list ul{background:#fff;width:190px;height:170px;float:left;padding:10px;margin:12px;border:1px solid #dddddd;}
.case_list li {color:#f55205;font-size:12px;font-weight:bold;}
.case_list li.t{background: url(../images/t.jpg) left center no-repeat;padding:5px;padding-left:10px;}
.case_list li a{color:#f55205;line-height:16px;}
.case_list .li img{width:190px;height:135px;}
  
 3、common.php 控制类
    // 跳转到上传页面
    public function show_mul_img(){
         $datas["imgName"]="";
         $this->_img_mul_view($datas);
    }
    function _img_mul_view($datas=array()){
         $this->load->view("comm_page/mul_upImg",$datas);
    }
    //多图片上传,保存操作 
    public function do_mulupImg(){
        $datas["img_lst"]=$this->mytool->update_mul_obj(mymsg::DIR_MULIMG);
        $this->_img_mul_view($datas); 
    }
   
  4、mytool.php工具类
    //2012-9-6,多图片上传时触发
    function update_mul_obj($filename,$name="userfile"){
        $CI = &get_instance();
        $CI->load->library('upload');
        return $CI->upload->do_mul_upload($filename,$name);
    }
    # 在这里扩展了CI自带的upload方法,做了一个多图片上传工能

   5、MY_upload.php 扩展实现 upload类
class MY_Upload extends CI_Upload{
    public function __construct(){
        parent::__construct();
    }
    function do_mul_upload($filename,$field = 'userfile'){
        $CI = &get_instance();
        $count=count($_FILES["$field"]["name"]);//页面取的默认名称
        $this->upload_path= $CI->mytool->get_obj_path($filename);//保存的路径
        $this->set_allowed_types("gif|jpg|png");//支持的图片格式
        $bh = $CI->session->userdata("bh");//登录的当前用户
        $file_arr=array();
        for($i=0;$i<$count;$i++){
                // Give it a name not likely to already exist!
                $pseudo_field_name = '_psuedo_' . $field . '_' . $i;
                $_FILES[$pseudo_field_name] =   array('name' => $_FILES[$field]['name'][$i],
                                                      'size' => $_FILES[$field]['size'][$i], 
                                                      'type' => $_FILES[$field]['type'][$i],
                                                      'tmp_name' => $_FILES[$field]['tmp_name'][$i], 
                                                      'error' => $_FILES[$field]['error'][$i]
                                                );
              if ($CI->upload->do_upload($pseudo_field_name)) { //默认名是:userfile
                    $data = $CI->upload->data();
                    $in_data=array();
                    $in_data["name"]= $data['file_name'];//文件名
                    $in_data["path"]="$filename/$bh";//保存的路径
                    $file_arr[]=$in_data;          
                }

        }
      return$file_arr;
    }
}

6、上传页面 mul_upImg.php