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Image upload in ci framework

高洛峰Original: 2017-02-09 09:52:221391browse

Front-end code

<html>
    <form action="ci/CodeIgniter_2.2.0/index.php/upload/up" method="post" enctype="multipart/form-data">
        <input type="file" name="upfile" />
        <input type="submit" name="sub" value="提交" />
    </form>
</html>

Controller:

Define an array and set some upload-related parameters

$config['upload_path'] = './uploads/';
//设置允许上传的类型
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
//如果是图片还可以设置最大高度和宽度
$config['max_height'] = 768;
$config['max_width'] = 1024;

Call CI’s upload general class and perform upload

//upload为调用的类名，全小写
$this->load->library('upload',$config);
//如果上传框的name写的是userfile，那就不用传参数了，如果不是，把name的值传进去
$this->upload->do_upload('上传框的name');

Receive error message or success message

//出错信息
$error = array('error' => $this->upload->display_error());
//成功信息
$data = array('upload_data' => $this->upload->data());

<?php 
if ( ! defined(&#39;BASEPATH&#39;)) exit(&#39;No direct script access allowed&#39;);

class Upload extends CI_Controller {
    //显示带表单的视图
    public function index(){
        $this->load->view('up');
    }
    //显示上传信息
    public function up(){
        $config['upload_path'] = './uploads/';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size'] = "2000";
        $this->load->library('upload',$config);
        //打印成功或错误的信息
        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);
        }
    }
}

Front-end code

<html>
    <form action="ci/CodeIgniter_2.2.0/index.php/upload/up" method="post" enctype="multipart/form-data">
        <input type="file" name="upfile" />
        <input type="submit" name="sub" value="提交" />
    </form>
</html>

Controller:

Define an array and set some upload-related parameters

$config['upload_path'] = './uploads/';
//设置允许上传的类型
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
//如果是图片还可以设置最大高度和宽度
$config['max_height'] = 768;
$config['max_width'] = 1024;

Call CI's upload general class and execute the upload

//upload为调用的类名，全小写
$this->load->library('upload',$config);
//如果上传框的name写的是userfile，那就不用传参数了，如果不是，把name的值传进去
$this->upload->do_upload('上传框的name');

Receive error or success information

//出错信息
$error = array('error' => $this->upload->display_error());
//成功信息
$data = array('upload_data' => $this->upload->data());

<?php 
if ( ! defined(&#39;BASEPATH&#39;)) exit(&#39;No direct script access allowed&#39;);

class Upload extends CI_Controller {
    //显示带表单的视图
    public function index(){
        $this->load->view('up');
    }
    //显示上传信息
    public function up(){
        $config['upload_path'] = './uploads/';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size'] = "2000";
        $this->load->library('upload',$config);
        //打印成功或错误的信息
        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);
        }
    }
}

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