使用codeigniter中的一个文件字段上传多个文件

Question

SOLVED I have a file field named additional_photos[] on a web page, there can be n number of instances of this field of course with different ID but same name. In a normal PHP code I will do a foreach on $_FILES['additional_photos'] and will do rest easily. But how do I achieve the same with CodeIgniter? I tried doing this:

        $additional_photosCount = count($_FILES['additional_photos']['name']); //Is there a better way to refer $_FILES like I can refere $_POST in CI?
        for($i=0; $i< $additional_photosCount; $i++){
            $uploadConfig['file_name'] = $this->properties['userId'].'-'.$_FILES['additional_photos']['name'][$i];
            $this->CI->upload->initialize($uploadConfig);
            if(!$this->CI->upload->do_upload('additional_photos['.$i.']')){;
                echo $this->CI->upload->display_errors();
            }
        }

But this,
a) IMHO, isn't correct way
b) gives me error "You did not select a file to upload."
Update
This is a way out I could apply:

        $additional_photosCount = count($_FILES['additional_photos']['name']);
        for($i=0; $i< $additional_photosCount; $i++){
            $uploadConfig['file_name'] = $this->properties['userId'].'-'.$_FILES['additional_photos']['name'][$i];
            $this->CI->upload->initialize($uploadConfig);
            $_FILES['additional_photos_'.$i] = array(
                'tmp_name'=> $_FILES['additional_photos']['tmp_name'][$i],
                'name'=> $_FILES['additional_photos']['name'][$i],
                'type'=> $_FILES['additional_photos']['type'][$i],
                'size'=> $_FILES['additional_photos']['size'][$i],
                'error'=> $_FILES['additional_photos']['error'][$i],
            );
            if(!$this->CI->upload->do_upload('additional_photos_'.$i)){;
                echo $this->CI->upload->display_errors();//TODO: instead of echoing push errors to a list
            }
        }

Answer 1

检查以下内容： https : //github.com/nicdev/CodeIgniter-Multiple-File-Upload ，应该执行上面想要的操作。

Answer 2

in HTML5 you can use this functionality

If you want to let the user select multiple files, simply use the multiple attribute on the input element:

   <input type="file" id="input" multiple onchange="handleFiles(this.files)">

REFERENCE