Codeigniter file upload error: You did not select a file to upload

Question

这真的很奇怪，我尝试查看 google 中与我的问题类似的最重要建议，但我相信这些不是问题的答案。我使用的是默认 'userfile'。谁能告诉我我在这里缺少什么？

我的表格结构：

<div class="panel-body">
    <?php echo form_open_multipart('register','role="studentForm" class="form-horizontal'); ?>

    <div class="form-group">
        <label for="userfile" class="col-lg-3 col-md-3 col-sm-3 control-label">Profile Picture</label>
        <div class="col-lg-9 col-md-9 col-sm-9">
                <input type="file" name="userfile" size="20" id="userfile">
        </div>
    </div>  
    <button type="submit" class="btn btn-default btn-login-style btn-sm pull-right">Submit</button>
    <?php echo form_close(); ?>
</div>

我的控制器的结构：

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

class Register extends CI_Controller{

    function __construct(){
        parent::__construct();
    }

    function index(){

        $config['upload_path']          = './uploads/';
        $config['allowed_types']        = 'gif|jpg|png|jpeg';
        $config['max_size']             = 2048;
        $config['max_width']            = 1024;
        $config['max_height']           = 768;

        $this->upload->initialize($config); 



        if(!$this->upload->do_upload()){

            $error = array('error'=>$this->upload->display_errors());

            echo $error['error'];
        }else{

            $uploaded_pic = $this->upload->data();
        }
    }
}

?>

注意：'Upload' 库会在 autoload.php 中自动加载。

Answer 1

尝试删除 if else 语句之前的 $this->upload->do_upload();？不需要指定两次。

Answer 2

您已拨打 $this->upload->do_upload(); 两次电话。请删除第一个。

并使用 $this->upload->do_upload('userfile'); 代替 $this->upload->do_upload();

Answer 3

好的，我明白了。我在 class:

中遗漏了一个引号 "

错误代码：

<?php echo form_open_multipart('register','role="studentForm" class="form-horizontal'); ?>

此处更正：

<?php echo form_open_multipart('register','role="studentForm" class="form-horizontal"'); ?>

Answer 4

您认为的第二行，请更正

<?php echo form_open_multipart('register','role="studentForm" class="form-horizontal" '); ?>

Codeigniter file upload error: You did not select a file to upload

Codeigniter file upload error: You did not select a file to upload

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