提交表单时，我的函数一次只上传一个图像。我不能同时上传多张图片。这是一个巨大的问题，因为我正在建立一个汽车销售网站，人们需要上传多个汽车图片。
我的上传.php控制器：
<?php
class Upload extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->helper(array('form', 'url'));
$this->load->model('upload_model');
}
function index()
{
$this->load->view('common/header');
$this->load->view('nav/top_nav');
$this->load->view('upload_form', array('error' => ' ' ));
}
function do_upload()
{
if($this->input->post('upload'))
{
$config['upload_path'] = './images/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '1024';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload())
{
$error = array('error' => $this->upload->display_errors());
$this->load->view('upload_form', $error);
}
else
{
$data=$this->upload->data();
$this->thumb($data);
$file=array(
'img_name'=>$data['raw_name'],
'thumb_name'=>$data['raw_name'].'_thumb',
'ext'=>$data['file_ext'],
'upload_date'=>time()
);
$this->upload_model->add_image($file);
$data = array('upload_data' => $this->upload->data());
$this->load->view('upload_success', $data);
}
}
else
{
redirect(site_url('upload'));
}
}
function thumb($data)
{
$config['image_library'] = 'gd2';
$config['source_image'] =$data['full_path'];
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width'] = 160;
$config['height'] = 110;
$this->load->library('image_lib', $config);
$this->image_lib->resize();
}
}
我的upload_form.php视图：
<?php $attributes = array('name' => 'myform');
echo form_open_multipart('/upload/do_upload',$attributes);?>
<input type="file" name="userfile" size="20" />
<input type="submit" value="upload" name="upload" />
<?php echo form_close(); ?>
我的upload_model.php型号：
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Upload_model extends CI_Model {
public function __construct()
{
parent::__construct();
}
function add_image($data)
{
$this->db->insert('jobs',$data);
}
}
我不能以允许多个图像上传的方式修改该功能。我非常感谢任何形式的指导或帮助。提前谢谢！
#####################
# Uploading multiple#
# Images #
#####################
$files = $_FILES;
$count = count($_FILES['uploadfile']['name']);
for($i=0; $i<$count; $i++)
{
$_FILES['uploadfile']['name']= $files['uploadfile']['name'][$i];
$_FILES['uploadfile']['type']= $files['uploadfile']['type'][$i];
$_FILES['uploadfile']['tmp_name']= $files['uploadfile']['tmp_name'][$i];
$_FILES['uploadfile']['error']= $files['uploadfile']['error'][$i];
$_FILES['uploadfile']['size']= $files['uploadfile']['size'][$i];
$this->upload->initialize($this->set_upload_options());//function defination below
$this->upload->do_upload('uploadfile');
$upload_data = $this->upload->data();
$name_array[] = $upload_data['file_name'];
$fileName = $upload_data['file_name'];
$images[] = $fileName;
}
$fileName = $images;
代码中发生了什么？？
好的$_FILE---->它是通过POST方法上传到当前脚本的项目的关联数组。要进一步查看这个链接
它是一个在脚本的所有范围内都可用的自动变量
function set_upload_options()
{
// upload an image options
$config = array();
$config['upload_path'] = LARGEPATH; //give the path to upload the image in folder
$config['remove_spaces']=TRUE;
$config['encrypt_name'] = TRUE; // for encrypting the name
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '78000';
$config['overwrite'] = FALSE;
return $config;
}
在你的html标记中，不要忘记：
Input name must be be defined as an array i.e. name="file[]"
Input element must have multiple="multiple" or just multiple
3.$this->load->library('upload'); //to load library
4.The callback, $this->upload->do_upload() will upload the file selected in the given field name to the destination folder.
5.And the callback $this->upload->data() returns an array of data related to the uploaded file like the file name, path, size etc.