ci框架中的圖片上傳

i牛牛丶發表於2019-02-16
框架

前端程式碼

<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>

控制器：

定義一個陣列，設定一些與上傳相關的引數

$config[`upload_path`] = `./uploads/`;
//設定允許上傳的型別
$config[`allowed_types`] = `gif|jpg|png`;
$config[`max_size`] = `100`;
//如果是圖片還可以設定最大高度和寬度
$config[`max_height`] = 768;
$config[`max_width`] = 1024;

呼叫CI的上傳通用類，並執行上傳

//upload為呼叫的類名，全小寫
$this->load->library(`upload`,$config);
//如果上傳框的name寫的是userfile，那就不用傳引數了，如果不是，把name的值傳進去
$this->upload->do_upload(`上傳框的name`);

接收出錯資訊或成功資訊

//出錯資訊
$error = array(`error` => $this->upload->display_error());
//成功資訊
$data = array(`upload_data` => $this->upload->data());
<?php 
if ( ! defined(`BASEPATH`)) exit(`No direct script access allowed`);

class Upload extends CI_Controller {
    //顯示帶表單的檢視
    public function index(){
        $this->load->view(`up`);
    }
    //顯示上傳資訊
    public function up(){
        $config[`upload_path`] = `./uploads/`;
        $config[`allowed_types`] = `gif|jpg|png`;
        $config[`max_size`] = "2000";
        $this->load->library(`upload`,$config);
        //列印成功或錯誤的資訊
        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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