Question

我要尝试在PHP CodeIgniter中上传多个图像，但它显示的错误信息如下

错误消息：isset或空的非法偏移类型   文件名：libraries / Upload.php
  行号：148
  您没有选择要上传的文件。

我的观看文件

<html>
    <head>
    <title>Upload Form</title>
    </head>
    <body>

    <?php
    if(isset($error))
    {
     echo $error;
    }
    ?>

    <?php echo form_open_multipart('upload/do_upload');?>

    <input type="file" name="userfile" size="20" />
    <input type="file" name="userfile1" size="20" />

    <br /><br />

    <input type="submit" value="upload" />

    </form>



    <?php 

    if(isset($upload_data))
    {
        echo "<ul>";

    foreach ($upload_data as $item => $value):

    echo"<li>";

     echo $item . $value;

     echo" </li>";

     endforeach;

    echo "</ul>";
    }
    ?>

    </body>
</html>

我的控制器文件

<?php

class Upload extends CI_Controller {

    function __construct()
    {
        parent::__construct();
        $this->load->helper(array('form', 'url'));
    }

    function index()
    {
        $this->load->view('upload_form', array('error' => ' ' ));
    }

    function do_upload()
    {
        $config['upload_path'] = './uploads/';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size'] = '10000';
        $config['max_width']  = '1024';
        $config['max_height']  = '768';

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

        $fname= array('f1' => 'userfile','f2'=>'userfile' );

        if ( ! $this->upload->do_upload($fname))
        {
            $error = array('error' => $this->upload->display_errors());

            $this->load->view('upload_form', $error);
        }
        else
        {
            $data = array('upload_data' => $this->upload->data());
            $this->load->view('upload_form', $data);
        }
    }
}
?>

请帮我解决问题。

Answer 1

因此，为了在同一个请求中进行多次上传，您可以更改CodeIgniter看到传入上传文件的方式，其方式类似于：

$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '10000';
$config['max_width']  = '1024';
$config['max_height']  = '768';

$this->load->library('upload');

$errors = [];
$files = $_FILES;
$upload_count = count( $_FILES['userfile']['name'] );
for( $i = 0; $i < $upload_count; $i++ )
{
    $_FILES['userfile'] = [
        'name'     => $files['userfile']['name'][$i],
        'type'     => $files['userfile']['type'][$i],
        'tmp_name' => $files['userfile']['tmp_name'][$i],
        'error'    => $files['userfile']['error'][$i],
        'size'     => $files['userfile']['size'][$i]
    ];

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

    // Use upload library for file validation
    if( $this->upload->do_upload() )
    {
        // Upload was successful, do something ...
    }
    else
    {
        // Error: Upload Failed
        $errors[] = $this->upload->display_errors('','');
    }
}

这也意味着您将HTML中文件输入的名称更改为userfile []。

codeigniter

1 个答案: