我已经进行了3天的搜索和苦苦挣扎，但仍无法完成。我想要做的是使用多个文件输入表单，然后上传它们。我不能只使用固定数量的文件进行上传。我在StackOverflow上尝试了许多解决方案，但找不到有效的解决方案。
这是我的上传控制器
<?php
class Upload extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->helper(array('form', 'url','html'));
}
function index()
{
$this->load->view('pages/uploadform', array('error' => ' ' ));
}
function do_upload()
{
$config['upload_path'] = './Images/';
$config['allowed_types'] = 'gif|jpg|png';
$this->load->library('upload');
foreach($_FILES['userfile'] as $key => $value)
{
if( ! empty($key['name']))
{
$this->upload->initialize($config);
if ( ! $this->upload->do_upload($key))
{
$error['error'] = $this->upload->display_errors();
$this->load->view('pages/uploadform', $error);
}
else
{
$data[$key] = array('upload_data' => $this->upload->data());
$this->load->view('pages/uploadsuccess', $data[$key]);
}
}
}
}
}
?>
我的上传表单是这个。
<html>
<head>
<title>Upload Form</title>
</head>
<body>
<?php echo $error;?>
<?php echo form_open_multipart('upload/do_upload');?>
<input type="file" multiple name="userfile[]" size="20" />
<br /><br />
<input type="submit" value="upload" />
</form>
</body>
</html>
我只是一直出现此错误：
您未选择要上传的文件。
这是示例的数组：
Array（[userfile] => Array（[name] => Array（[0] => youtube.png [1] => zergling.jpg））[type] => Array（[0] => image / png [1] => image / jpeg）[tmp_name] =>数组（[0] => E：\ wamp \ tmp \ php7AC2.tmp [1] => E：\ wamp \ tmp \ php7AC3.tmp）[错误] =>数组（[0] => 0 [1] => 0）[大小] =>数组（[0] => 35266 [1] => 186448））））
如果我选择2个文件，我将连续5次这样做。我也使用标准的上传库。
我终于设法在您的帮助下使其正常运行！
这是我的代码：
function do_upload()
{
$this->load->library('upload');
$files = $_FILES;
$cpt = count($_FILES['userfile']['name']);
for($i=0; $i<$cpt; $i++)
{
$_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];
$this->upload->initialize($this->set_upload_options());
$this->upload->do_upload();
}
}
private function set_upload_options()
{
//upload an image options
$config = array();
$config['upload_path'] = './Images/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '0';
$config['overwrite'] = FALSE;
return $config;
}
谢谢你们！
所有发布的文件都将在$ _FILES变量中，要使用codeigniter上传库，我们需要提供用于上传的field_name（默认为'userfile'），因此我们获取所有发布的文件并创建另一个files数组，为每个文件创建我们自己的名称，并将此名称提供给codeigniter库do_upload函数。
if(!empty($_FILES)){
$j = 1;
foreach($_FILES as $filekey=>$fileattachments){
foreach($fileattachments as $key=>$val){
if(is_array($val)){
$i = 1;
foreach($val as $v){
$field_name = "multiple_".$filekey."_".$i;
$_FILES[$field_name][$key] = $v;
$i++;
}
}else{
$field_name = "single_".$filekey."_".$j;
$_FILES[$field_name] = $fileattachments;
$j++;
break;
}
}
// Unset the useless one
unset($_FILES[$filekey]);
}
foreach($_FILES as $field_name => $file){
if(isset($file['error']) && $file['error']==0){
$config['upload_path'] = [upload_path];
$config['allowed_types'] = [allowed_types];
$config['max_size'] = 100;
$config['max_width'] = 1024;
$config['max_height'] = 768;
$this->load->library('upload', $config);
$this->upload->initialize($config);
if ( ! $this->upload->do_upload($field_name)){
$error = array('error' => $this->upload->display_errors());
echo "Error Message : ". $error['error'];
}else{
$data = $this->upload->data();
echo "Uploaded FileName : ".$data['file_name'];
// Code for insert into database
}
}
}
}
function imageUpload(){
if ($this->input->post('submitImg') && !empty($_FILES['files']['name'])) {
$filesCount = count($_FILES['files']['name']);
$userID = $this->session->userdata('userID');
$this->load->library('upload');
$config['upload_path'] = './userdp/';
$config['allowed_types'] = 'jpg|png|jpeg';
$config['max_size'] = '9184928';
$config['max_width'] = '5000';
$config['max_height'] = '5000';
$files = $_FILES;
$cpt = count($_FILES['files']['name']);
for($i = 0 ; $i < $cpt ; $i++){
$_FILES['files']['name']= $files['files']['name'][$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];
$imageName = 'image_'.$userID.'_'.rand().'.png';
$config['file_name'] = $imageName;
$this->upload->initialize($config);
if($this->upload->do_upload('files')){
$fileData = $this->upload->data(); //it return
$uploadData[$i]['picturePath'] = $fileData['file_name'];
}
}
if (!empty($uploadData)) {
$imgInsert = $this->insert_model->insertImg($uploadData);
$statusMsg = $imgInsert?'Files uploaded successfully.':'Some problem occurred, please try again.';
$this->session->set_flashdata('statusMsg',$statusMsg);
redirect('home/user_dash');
}
}
else{
redirect('home/user_dash');
}
}
[codeigniter中没有可用的预定义方法来一次上传多个文件，但您可以以数组形式发送文件并一一上传]
这里是参考：这是在带有预览https://codeaskbuzz.com/how-to-upload-multiple-file-in-codeigniter-framework/的codeigniter 3.0.1中上载多个文件的最佳选择>
所以我更改的是每次都加载上载库
我最近正在研究它。试试这个功能：
保存，然后将变量$ _FILES重新定义为所需的变量。也许不是最好的解决方案，但这对我有用。
您应该使用此库在CI https://github.com/stvnthomas/CodeIgniter-Multi-Upload中进行多次上传
安装只需将MY_Upload.php文件复制到您的应用程序库目录。
使用：控制器中的功能test_up
public function test_up(){
if($this->input->post('submit')){
$path = './public/test_upload/';
$this->load->library('upload');
$this->upload->initialize(array(
"upload_path"=>$path,
"allowed_types"=>"*"
));
if($this->upload->do_multi_upload("myfile")){
echo '<pre>';
print_r($this->upload->get_multi_upload_data());
echo '</pre>';
}
}else{
$this->load->view('test/upload_view');
}
}
upload_view.php在Applications / view / test文件夹中
<form action="" method="post" enctype="multipart/form-data">
<input type="file" name="myfile[]" id="myfile" multiple>
<input type="submit" name="submit" id="submit" value="submit"/>
尝试此代码。
对我来说很好用
您每次都要对库进行初始化
function do_upload()
{
foreach ($_FILES as $index => $value)
{
if ($value['name'] != '')
{
$this->load->library('upload');
$this->upload->initialize($this->set_upload_options());
//upload the image
if ( ! $this->upload->do_upload($index))
{
$error['upload_error'] = $this->upload->display_errors("<span class='error'>", "</span>");
//load the view and the layout
$this->load->view('pages/uploadform', $error);
return FALSE;
}
else
{
$data[$key] = array('upload_data' => $this->upload->data());
$this->load->view('pages/uploadsuccess', $data[$key]);
}
}
}
}
private function set_upload_options()
{
//upload an image options
$config = array();
$config['upload_path'] = 'your upload path';
$config['allowed_types'] = 'gif|jpg|png';
return $config;
}
进一步编辑
我已经找到了使用一个唯一的输入框上传文件的方式
CodeIgniter不支持多个文件。在foreach中使用do_upload（）与在外部使用do_upload（）没什么不同。
您将需要在没有CodeIgniter的帮助下进行处理。这是一个示例https://github.com/woxxy/FoOlSlide/blob/master/application/controllers/admin/series.php#L331-370
这是对您的评价：）
正如Carlos Rincones所建议；不要害怕与超全球玩家一起玩。
$files = $_FILES;
for($i=0; $i<count($files['userfile']['name']); $i++)
{
$_FILES = array();
foreach( $files['userfile'] as $k=>$v )
{
$_FILES['userfile'][$k] = $v[$i];
}
$this->upload->do_upload('userfile')
}
public function imageupload()
{
$count = count($_FILES['userfile']['size']);
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png|bmp';
$config['max_size'] = '0';
$config['max_width'] = '0';
$config['max_height'] = '0';
$config['image_library'] = 'gd2';
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = FALSE;
$config['width'] = 50;
$config['height'] = 50;
foreach($_FILES as $key=>$value)
{
for($s=0; $s<=$count-1; $s++)
{
$_FILES['userfile']['name']=$value['name'][$s];
$_FILES['userfile']['type'] = $value['type'][$s];
$_FILES['userfile']['tmp_name'] = $value['tmp_name'][$s];
$_FILES['userfile']['error'] = $value['error'][$s];
$_FILES['userfile']['size'] = $value['size'][$s];
$this->load->library('upload', $config);
if ($this->upload->do_upload('userfile'))
{
$data['userfile'][$i] = $this->upload->data();
$full_path = $data['userfile']['full_path'];
$config['source_image'] = $full_path;
$config['new_image'] = './uploads/resiezedImage';
$this->load->library('image_lib', $config);
$this->image_lib->resize();
$this->image_lib->clear();
}
else
{
$data['upload_errors'][$i] = $this->upload->display_errors();
}
}
}
}
我在自定义库中使用了以下代码从我的控制器调用，如下所示]
function __construct() {<br />
parent::__construct();<br />
$this->load->library('CommonMethods');<br />
}<br />
$config = array();<br />
$config['upload_path'] = 'assets/upload/images/';<br />
$config['allowed_types'] = 'gif|jpg|png|jpeg';<br />
$config['max_width'] = 150;<br />
$config['max_height'] = 150;<br />
$config['encrypt_name'] = TRUE;<br />
$config['overwrite'] = FALSE;<br />
// upload multiplefiles<br />
$fileUploadResponse = $this->commonmethods->do_upload_multiple_files('profile_picture', $config);
/**
* do_upload_multiple_files - Multiple Methods
* @param type $fieldName
* @param type $options
* @return type
*/
public function do_upload_multiple_files($fieldName, $options) {
$response = array();
$files = $_FILES;
$cpt = count($_FILES[$fieldName]['name']);
for($i=0; $i<$cpt; $i++)
{
$_FILES[$fieldName]['name']= $files[$fieldName]['name'][$i];
$_FILES[$fieldName]['type']= $files[$fieldName]['type'][$i];
$_FILES[$fieldName]['tmp_name']= $files[$fieldName]['tmp_name'][$i];
$_FILES[$fieldName]['error']= $files[$fieldName]['error'][$i];
$_FILES[$fieldName]['size']= $files[$fieldName]['size'][$i];
$this->CI->load->library('upload');
$this->CI->upload->initialize($options);
//upload the image
if (!$this->CI->upload->do_upload($fieldName)) {
$response['erros'][] = $this->CI->upload->display_errors();
} else {
$response['result'][] = $this->CI->upload->data();
}
}
return $response;
}
<form method="post" action="<?php echo base_url('submit'); ?>" enctype="multipart/form-data">
<input type="file" name="userfile[]" id="userfile" multiple="" accept="image/*">
</form>
模型：FilesUpload
class FilesUpload extends CI_Model {
public function setFiles()
{
$name_array = array();
$count = count($_FILES['userfile']['size']);
foreach ($_FILES as $key => $value)
for ($s = 0; $s <= $count - 1; $s++) {
$_FILES['userfile']['name'] = $value['name'][$s];
$_FILES['userfile']['type'] = $value['type'][$s];
$_FILES['userfile']['tmp_name'] = $value['tmp_name'][$s];
$_FILES['userfile']['error'] = $value['error'][$s];
$_FILES['userfile']['size'] = $value['size'][$s];
$config['upload_path'] = 'assets/product/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '10000000';
$config['max_width'] = '51024';
$config['max_height'] = '5768';
$this->load->library('upload', $config);
if (!$this->upload->do_upload()) {
$data_error = array('msg' => $this->upload->display_errors());
var_dump($data_error);
} else {
$data = $this->upload->data();
}
$name_array[] = $data['file_name'];
}
$names = implode(',', $name_array);
return $names;
}
}
CONTROLER提交
class Submit extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->helper(array('html', 'url'));
}
public function index()
{
$this->load->model('FilesUpload');
$data = $this->FilesUpload->setFiles();
echo '<pre>';
print_r($data);
}
}
// Change $_FILES to new vars and loop them
foreach($_FILES['files'] as $key=>$val)
{
$i = 1;
foreach($val as $v)
{
$field_name = "file_".$i;
$_FILES[$field_name][$key] = $v;
$i++;
}
}
// Unset the useless one ;)
unset($_FILES['files']);
// Put each errors and upload data to an array
$error = array();
$success = array();
// main action to upload each file
foreach($_FILES as $field_name => $file)
{
if ( ! $this->upload->do_upload($field_name))
{
echo ' failed ';
}else{
echo ' success ';
}
}