视图
<form action="" method="POST" enctype="multipart/form-data">
<input type="file" name="userfile[]" size="40" multiple/>
<input type="submit" name="submit" value="Upload">
</form>
控制器
public function image()
{
$data['error'] = '';
$this->load->model('StackM');
if(isset($_POST['submit']))
{
$data['update_pass_error_msg'] = $this->StackM->add_multiple_image();
}
$this->load->view('stack_view');
}
Model
public function add_multiple_image(){
if((!empty($_FILES['f2']['name'])))
{
$config['upload_path'] = 'uploads/';
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$files = $_FILES;
if ($files['f2']['name'][0] == '' )
{
# code...
return "Select a file to upload";
}
else
{
$mum_files = count($files['f2']);
for($i=0; $i<$mum_files; $i++)
{
if ( isset($files['f2']['name'][$i]) )
{
$config['file_name'] = time().'-'.$files['f2']['name'][$i];
$this->load->library('upload', $config);
$_FILES['f2']['name']= $files['f2']['name']["$i"];
$_FILES['f2']['type']= $files['f2']['type']["$i"];
$_FILES['f2']['tmp_name']= $files['f2']['tmp_name']["$i"];
$_FILES['f2']['error']= $files['f2']['error']["$i"];
$_FILES['f2']['size']= $files['f2']['size']["$i"];
$filename = rand().'-'.$_FILES['f2']['name'];
if (!empty($this->upload->do_upload('f2')))
{
$dataInfo[] = $this->upload->data();
$all_imgs = '';
if ( count($dataInfo) > 0) {
# code...
foreach ($dataInfo as $info) {
# code...
$all_imgs .= $info['file_name'];
$all_imgs .= ',';
}
}
}
}
}
}
}
else{
$all_imgs = "";
}
}
}
else{
$all_imgs = $this->session->userdata('image');
}
$this->db->insert('table_name', $all_imgs);
我在这段代码中遇到的问题是想想如果我要添加7张图片，但它只显示数据库中的5张图片，它不会超过5张，而且我想在编辑表格时知道如果我不这样做想要更改图像然后它应该保持相同的图像，所以我已经将旧图像存储在会话中并检查它是否为空，然后它只应该是会话变量。 但在我的代码中如果我不上传新的如果我保留旧图像，那么它将保存空白
答案 0 :(得分：1)
为避免偏移错误，在for循环内部需要检查是否设置了数组索引： 这里我有一个演示代码来上传CodeIgniter中的多个文件：
视图/ stack_view.php
<?php if ($this->session->flashdata('status')) { ?>
<h5><?=$this->session->flashdata('status')?>: <?=$this->session->flashdata('message')?></h5>
<?php } ?>
<?=form_open_multipart('stack', array('id' => 'my_id'))?>
<input type="file" name="userfile[]" size="40" multiple/>
<input type="submit" name="submit" value="Upload">
<?=form_close()?>
控制器/ Stack.php
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Stack extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->library('session');
$this->load->helper(array('form', 'url'));
}
public function index()
{
if ($this->input->post('submit')) {
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$files = $_FILES;
if ($files['userfile']['name'][0] == '' ) {
# code...
$this->session->set_flashdata('status', 'error');
$this->session->set_flashdata('message', "Select a file to upload");
}
else
{
$mum_files = count($files['userfile']);
$dataInfo = array();
for($i=0; $i<$mum_files; $i++)
{
if ( isset($files['userfile']['name'][$i]) ) {
$config['file_name'] = time().'-'.$files['userfile']['name'][$i];
$this->load->library('upload', $config);
$_FILES['userfile']['name']= $files['userfile']['name']["$i"];
$_FILES['userfile']['type']= $files['userfile']['type']["$i"];
$_FILES['userfile']['tmp_name']= $files['userfile']['tmp_name']["$i"];
$_FILES['userfile']['error']= $files['userfile']['error']["$i"];
$_FILES['userfile']['size']= $files['userfile']['size']["$i"];
$filename = rand().'-'.$_FILES['userfile']['name'];
if ( ! $this->upload->do_upload('userfile'))
{
$error_message = $this->upload->display_errors();
$this->session->set_flashdata('status', 'error');
$this->session->set_flashdata('message', "$error_message");
}
else
{
//$data = array('upload_data' => $this->upload->data());
$this->session->set_flashdata('status', 'success');
$this->session->set_flashdata('message', "Files upload is success");
}
$dataInfo[] = $this->upload->data(); //all the info about the uploaded files are stored in this array
}
}
//here you can insert all the info about uploaded file into database using $dataInfo
$all_imgs = '';
if ( count($dataInfo) > 0) {
# code...
foreach ($dataInfo as $info) {
# code...
$all_imgs .= $info['file_name'];
$all_imgs .= ',';
}
}
$insert_data = array(
'your_column_name' => rtrim($all_imgs,",")
);
$this->db->insert('your_table_name', $insert_data);
}
}
$this->load->view('stack_view');
}
}
试试这个脚本，我希望你能从中得到一些帮助。
答案 1 :(得分：0)
这是工作脚本，请尝试将其上传 公共功能upload（） {
$this->load->library('session');
if ( ! empty($_FILES))
{
$config['upload_path'] = "assets/uploads/";
$config['allowed_types'] = 'jpg|png|jpeg';
$config['max_size'] = 5120; //limit only 5 Mb
$this->load->library('upload');
$files = $_FILES;;
$number_of_files = count($_FILES['files']['name']);
$errors = 0;
$myname = $this->input->post('ad_title');
for ($i = 0; $i < $number_of_files; $i++)
{
//$randVal = rand(450,4550).time('d-y-m');
$filename = basename($files['files']['name'][$i]);
$extension = pathinfo($filename, PATHINFO_EXTENSION);
$new = md5($filename.''.time('d-y-m')).'.'.$extension;
$_FILES['files']['name'] = $new; //$files['files']['name'][$i];
$_FILES['files']['type'] = $files['files']['type'][$i];
$_FILES['files']['tmp_name'] = $files['files']['tmp_name'][$i];
$_FILES['files']['error'] = $files['files']['error'][$i];
$_FILES['files']['size'] = $files['files']['size'][$i];
$image = array('upload_data' => $this->upload->data());
$image_name = $_FILES['files']['name'];
$ip = $this->input->ip_address();
$this->session->set_userdata("userIP",$ip);
//$this->session->unset_userdata("userIP");
$Dval = array(
"filename" => $image_name,
"ip" => $this->input->ip_address()
);
$this->member_model->tmp_image($Dval);
$this->upload->initialize($config);
if ( $this->upload->do_upload("files"))
{
$errors++;
$data = $this->upload->data();
echo json_encode($data['file_name']);
//code is for thumbnail and watermark on images
//$this->watermark($data['full_path']);
//$myPathfT = $config1['upload_path'] = "./assets/thumbs/".$aDir;
//mkdir($myPathfT);b
$config1 = array();
$config1['image_library'] = 'gd2';
$config1['source_image'] = $data['full_path'];
$config1['new_image'] = 'assets/uploads/thumbs/';
$config1['create_thumb'] = false;
$config1['quality'] = 50;
$config1['height'] = 150;
$config1['width'] = 150;
$this->load->library('image_lib',$config1);
$this->image_lib->initialize($config1);
$this->image_lib->resize();
$this->image_lib->clear();
}
}
if ($errors > 0)
{
//echo "Data Transferred";
}
}
elseif ($this->input->post('file_to_remove'))
{
$aDir = $this->session->userdata('Dir');
$file_to_remove = $this->input->post('file_to_remove');
unlink("./assets/mainFilesData/$aDir/" . $file_to_remove);
$array = $this->session->userdata('photo');
$dataF = array_diff($array, array($file_to_remove));
$this->session->set_userdata('photo',$dataF);
}
else
{
$this->listFiles();
}
}