ci 多个文件同时上传

// 单个文件请手册，这里多个文件中，参数设置可参考手册
view 视图
<form...>
<input type="file" name="userfile[]">
<input type="file" name="userfile[]">
...
</form>


controller 控制器
<?php
$config[\'upload_path\'] = \'./uploads/\';
$config[\'allowed_types\'] = \'gif|gpg|gpeg|png\';
$config[\'max_size\'] = \'2000\';
$config[\'max_width\'] = \'1024\';
$config[\'max_height\'] = \'1000\';

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

// 函数用来分析数组
multifile_array();

foreach ($_FILES as $file => $file_data)
{
  $this->upload->do_upload($file);
  // 返回的信息，可入数据库
  $data[] = array(\'upload_data\' => $this->upload->data());
}

// multifile_array()函数
function multifile_array()
{
    if(count($_FILES) == 0)
        return;
   
    $files = array();
    $all_files = $_FILES[\'userfile\'][\'name\'];
    $i = 0;
   
    foreach ($all_files as $filename) {
        $files[++$i][\'name\'] = $filename;
        $files[$i][\'type\'] = current($_FILES[\'userfile\'][\'type\']);
        next($_FILES[\'userfile\'][\'type\']);
        $files[$i][\'tmp_name\'] = current($_FILES[\'userfile\'][\'tmp_name\']);
        next($_FILES[\'userfile\'][\'tmp_name\']);
        $files[$i][\'error\'] = current($_FILES[\'userfile\'][\'error\']);
        next($_FILES[\'userfile\'][\'error\']);
        $files[$i][\'size\'] = current($_FILES[\'userfile\'][\'size\']);
        next($_FILES[\'userfile\'][\'size\']);
    }

    $_FILES = $files;

}    
?>