Codeigniter 文件上传问题

Question

我正在尝试使用 codeigniter 3 上传图像文件，但它不起作用。无论我做什么，它总是显示 "You didn't select a file to upload"。当我单击“网络”选项卡中的错误时，它会在控制台上记录错误 500，然后将我重定向到显示该错误的新选项卡。这是我的 HTML 代码：

<div id="container">
<h1>Welcome to CodeIgniter!</h1>

<div id="body">
    <form method="post" enctype="multipart/form-data" action="<?php echo base_url('index.php/welcome/upload'); ?>">
        <input type="text" name="username" value="Zahid Saeed">
        <input type="file" name="profile_img">
        <button type="submit">Submit Form</button>
    </form>
</div>

这是我的控制器：

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {

    function __construct() {
        parent::__construct();
        $this->load->helper("url");
    }

    public function index()
    {
        $this->load->view('welcome_message');
    }
    public function upload() {  

        $config = array(
            "upload_path" => "./uploads/",
            "allowed_types" => "gif|jpg|png"
        );
        echo "<pre>";
        print_r($this->input->post());
        print_r($_FILES);
        echo "</pre>";

        $this->load->library("upload", $config);
        $this->upload->initialize($config);

        if(!$this->upload->do_upload("profile_img")) {
            echo $this->upload->display_errors();
            echo "IN IF";
        }
        else {
            echo "img uploaded successfully";
        }

    }
}

还有一件事，确切的代码在 linux 机器上运行，实际上在服务器上运行。但它不适用于我的笔记本电脑。我正在使用 Windows 8.1

提前致谢

Answer 1

上传路径使用绝对路径可能是个好主意

$this->upload_config['upload_path'] = FCPATH . 'uploads/';

当我运行你的代码时，它在 Windows 10 Home 上的 WAMP64 下工作，即文件已上传，我可以看到

Array ( [username] => Zahid Saeed ) Array ( [profile_img] => Array ( [name] => header-background.png [type] => image/png [tmp_name] => C:\wamp64\tmp\php34DA.tmp [error] => 0 [size] => 563 ) ) img uploaded successfully

Answer 2

may be its php.ini problem

打开您的 php.ini 文件

搜索扩展名=php_fileinfo.dll

如果您使用的是xampp，它可能会被默认注释

change 
;extension=php_fileinfo.dll

to

extension=php_fileinfo.dll

并重新启动您的 xampp...

这解决了我的问题

Answer 3

//检查文件是否为空如果(!empty($_FILES['attach_file']['name'])){ $config['upload_path'] = APPPATH.'../assets/images/'; $配置['allowed_types'] = 'jpg|jpeg|png|mp4'; $config['file_name'] = 'attach_file_'.time(); $config['max_size'] = "1024";$config['max_height']= "800";$config['max_width'] = "1280";$config['overwrite' ] = false;$this->upload->initialize($config);if(!($this->upload->do_upload("attach_file"))){$data['error']['attach_file'] = $this->upload->display_errors();else{ $coverPhotoData = $this->upload->data(); $coverPhoto =$coverPhotoData['file_name'];}}elseif($this->input->get('cup')){$coverPhoto = $previous['attach_file'];}

Answer 4

此代码不支持文件上传的 obj 和 fbx 格式我为此所做的更改

class 欢迎扩展 CI_Controller {

function __construct() {
    parent::__construct();
    $this->load->helper("url");
}

public function index()
{
    $this->load->view('welcome_message');
}
public function upload() {  

    $config = array(
        "upload_path" => "./uploads/",
        "allowed_types" => "gif|jpg|png"
    );
    echo "<pre>";
    print_r($this->input->post());
    print_r($_FILES);
    echo "</pre>";

    $this->load->library("upload", $config);
    $this->upload->initialize($config);

    if(!$this->upload->do_upload("profile_img")) {
        echo $this->upload->display_errors();
        echo "IN IF";
    }
    else {
        echo "img uploaded successfully";
    }

}

}

Codeigniter 文件上传问题

Codeigniter file uploading issue

php

codeigniter

file-upload

codeigniter-3