Php 上载文件在codeigniter 3中不工作错误：您没有选择任何文件
我已经创建了根目录并设置了它的路径，我按原样完成了前端。ide没有给出任何错误，但当我继续时，它说您没有选择任何图像 控制器代码：Php 上载文件在codeigniter 3中不工作错误：您没有选择任何文件,php,codeigniter,view,controller,codeigniter-3,Php,Codeigniter,View,Controller,Codeigniter 3,我已经创建了根目录并设置了它的路径，我按原样完成了前端。ide没有给出任何错误，但当我继续时，它说您没有选择任何图像 控制器代码： class Images extends MY_Controller { function __construct() { parent::__construct(); } function index() { $this->data['displayname'] = $this->
class Images extends MY_Controller
{
function __construct()
{
parent::__construct();
}
function index()
{
$this->data['displayname'] = $this->admin->lastname;
$this->data['images'] = Image::all();
$this->data['btn'] = 'Save';
$this->data['content'] = 'admin/images/index';
$this->load->view('layouts/admin', $this->data);
}
public function do_upload() {
$config['upload_path'] = './uploads/';
$config['allowed_types'] = '*';
//$config['max_size'] = 100;
//$config['max_width'] = 1024;
//$config['max_height'] = 768;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload('images'))
{
$error = array('error' => $this->upload->display_errors());
// echo $this->upload->display_errors();
$this->load->view('index', $error);
}
else
{
$data = array('upload_data' => $this->upload->data());
$this->load->view('upload_success', $data);
}
}
}
public function create($id)
{
$config ['upload_path'] = 'uploads';
$config ['allowed_types'] = 'gif|jpg|png';
$config ['encrypt_name'] = TRUE;
$this->upload->initialize($config);
$package = Package::find($id);
$files = $_FILES;
$cpt = count($_FILES ['images'] ['name']);
for ($i = 0; $i < $cpt; $i++) {
$_FILES ['images'] ['name'] = $files ['images'] ['name'] [$i];
$_FILES ['images'] ['type'] = $files ['images'] ['type'] [$i];
$_FILES ['images'] ['tmp_name'] = $files ['images'] ['tmp_name'] [$i];
$_FILES ['images'] ['error'] = $files ['images'] ['error'] [$i];
$_FILES ['images'] ['size'] = $files ['images'] ['size'] [$i];
if ($this->upload->do_upload('images')){
$upload_data = $this->upload->data();
$file_name = $upload_data['file_name'];
$package->create_images(array('image_location' => $file_name));
}
}
redirect('admin/packages/');
}
}
<?= form_open('admin/images/do_upload') ?>
<label><?= form_upload('images[]')?></label>
<div class="input-group-btn">
<button class="btn btn-success add-image" type="button"><i class="glyphicon glyphicon-plus"></i> Add</button>
</div>
</div>
</ul>
<div class="line"></div>
<?= form_submit('', 'Submit', 'class="publish-btn"') ?>
<?= form_close()?>
添加
在文件上传的情况下，您应该使用
<?php form_open_multipart('admin/images/do_upload') ?>
不是这个
<?php form_open('admin/images/do_upload') ?>
在文件上载情况下，您应该使用
<?php form_open_multipart('admin/images/do_upload') ?>
不是这个
<?php form_open('admin/images/do_upload') ?>
使用上述代码而不是
<?= form_open('admin/images/do_upload') ?>
使用上述代码而不是
<?= form_open('admin/images/do_upload') ?>
我将多部分添加到我的表单中，这导致了一个无效路径问题，我在添加后通过初始化库解决了这个问题
$this->upload->initialize($config);
在这一行加载库之后
$this->load->library('upload', $config);
首先加载库，然后初始化。
但选择的问题仍然没有解决
我还尝试了一些其他代码。我将多部分添加到表单中，这造成了一个无效路径的问题，我在添加后通过初始化库解决了这个问题
$this->upload->initialize($config);
在这一行加载库之后
$this->load->library('upload', $config);
首先加载库，然后初始化。
但选择的问题仍然没有解决
我也尝试了一些其他的代码。经过大量的研究和尝试，我解决了我的问题
这是全部内容
控制器代码：
class Images extends MY_Controller
{
function __construct()
{
parent::__construct();
}
function index()
{
$this->data['displayname'] = $this->admin->lastname;
$this->data['images'] = Image::all();
$this->data['btn'] = 'Save';
$this->data['content'] = 'admin/images/index';
$this->load->view('layouts/admin', $this->data);
}
public function do_upload() {
$config['upload_path'] = './uploads/';
$config['allowed_types'] = '*';
//$config['max_size'] = 100;
//$config['max_width'] = 1024;
//$config['max_height'] = 768;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload('images'))
{
$error = array('error' => $this->upload->display_errors());
// echo $this->upload->display_errors();
$this->load->view('index', $error);
}
else
{
$data = array('upload_data' => $this->upload->data());
$this->load->view('upload_success', $data);
}
}
}
public function create($id)
{
$config ['upload_path'] = 'uploads';
$config ['allowed_types'] = 'gif|jpg|png';
$config ['encrypt_name'] = TRUE;
$this->upload->initialize($config);
$package = Package::find($id);
$files = $_FILES;
$cpt = count($_FILES ['images'] ['name']);
for ($i = 0; $i < $cpt; $i++) {
$_FILES ['images'] ['name'] = $files ['images'] ['name'] [$i];
$_FILES ['images'] ['type'] = $files ['images'] ['type'] [$i];
$_FILES ['images'] ['tmp_name'] = $files ['images'] ['tmp_name'] [$i];
$_FILES ['images'] ['error'] = $files ['images'] ['error'] [$i];
$_FILES ['images'] ['size'] = $files ['images'] ['size'] [$i];
if ($this->upload->do_upload('images')){
$upload_data = $this->upload->data();
$file_name = $upload_data['file_name'];
$package->create_images(array('image_location' => $file_name));
}
}
redirect('admin/packages/');
}
}
公共函数创建（$id）
{
$config['upload_path']='uploads'；
$config['allowed_types']='gif | jpg | png'；
$config['encrypt_name']=TRUE；
$this->upload->initialize（$config）；
$package=package:：find（$id）；
$files=$\u文件；
$cpt=count（$_文件['images']['name']）；
对于（$i=0；$i<$cpt；$i++）{
$_FILES['images']['name']=$FILES['images']['name'][$i]；
$\u文件['images']['type']=$FILES['images']['type'][$i]；
$\u FILES['images']['tmp_name']=$FILES['images']['tmp_name'][$i]；
$\u文件['images']['error']=$FILES['images']['error'][$i]；
$\u文件['images']['size']=$FILES['images']['size'][$i]；
如果（$this->upload->do_upload（'images'））{
$upload_data=$this->upload->data（）；
$file_name=$upload_data['file_name']；
$package->create_image（数组（'image_location'=>$file_name））；
}
}
重定向（'admin/packages/'）；
}
}
查看代码：
<div class="container">
<?= form_open_multipart('admin/images/create/' . $this->uri->segment(4)) ?>
<div class="row">
<div class="col-md-8 publish">
<h4>Image Gallery</h4>
<div class="line"></div>
<ul>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
<div class="input-group control-group after-add-image">
<label><input type="file" name="images[]"></label>
<div class="input-group-btn">
<button class="btn btn-success add-image" type="button"><i class="glyphicon glyphicon-plus"></i> Add</button>
</div>
</div>
</ul>
<div class="line"></div>
<?= form_submit('', 'Submit', 'class="publish-btn"') ?>
<?= form_close()?>
<div class="clear-all"></div>
<!-- Copy Fields-These are the fields which we get through jquery and then add after the above input,-->
<div class="copy-field" style="display: none">
<div class="control-group input-group" style="margin-top:10px">
<label><label><input type="file" name="images[]"></label></label>
<div class="input-group-btn">
<button class="btn btn-danger delete" type="button"><i class="glyphicon glyphicon-delete"></i> Remove</button>
</div>
</div>
</div>
<script type="text/javascript">
$(document).ready(function() {
//here first get the contents of the div with name class copy-fields and add it to after "after-add-more" div class.
$(".add-image").click(function(){
var html = $(".copy-field").html();
$(".after-add-image").after(html);
});
//here it will remove the current value of the remove button which has been pressed
$("body").on("click",".delete",function(){
$(this).parents(".control-group").remove();
});
});
</script>
图像库
添加
经过大量的研究和尝试大量的代码，我解决了我的问题
这是全部内容
控制器代码：
class Images extends MY_Controller
{
function __construct()
{
parent::__construct();
}
function index()
{
$this->data['displayname'] = $this->admin->lastname;
$this->data['images'] = Image::all();
$this->data['btn'] = 'Save';
$this->data['content'] = 'admin/images/index';
$this->load->view('layouts/admin', $this->data);
}
public function do_upload() {
$config['upload_path'] = './uploads/';
$config['allowed_types'] = '*';
//$config['max_size'] = 100;
//$config['max_width'] = 1024;
//$config['max_height'] = 768;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload('images'))
{
$error = array('error' => $this->upload->display_errors());
// echo $this->upload->display_errors();
$this->load->view('index', $error);
}
else
{
$data = array('upload_data' => $this->upload->data());
$this->load->view('upload_success', $data);
}
}
}
public function create($id)
{
$config ['upload_path'] = 'uploads';
$config ['allowed_types'] = 'gif|jpg|png';
$config ['encrypt_name'] = TRUE;
$this->upload->initialize($config);
$package = Package::find($id);
$files = $_FILES;
$cpt = count($_FILES ['images'] ['name']);
for ($i = 0; $i < $cpt; $i++) {
$_FILES ['images'] ['name'] = $files ['images'] ['name'] [$i];
$_FILES ['images'] ['type'] = $files ['images'] ['type'] [$i];
$_FILES ['images'] ['tmp_name'] = $files ['images'] ['tmp_name'] [$i];
$_FILES ['images'] ['error'] = $files ['images'] ['error'] [$i];
$_FILES ['images'] ['size'] = $files ['images'] ['size'] [$i];
if ($this->upload->do_upload('images')){
$upload_data = $this->upload->data();
$file_name = $upload_data['file_name'];
$package->create_images(array('image_location' => $file_name));
}
}
redirect('admin/packages/');
}
}
公共函数创建（$id）
{
$config['upload_path']='uploads'；
$config['allowed_types']='gif | jpg | png'；
$config['encrypt_name']=TRUE；
$this->upload->initialize（$config）；
$package=package:：find（$id）；
$files=$\u文件；
$cpt=count（$_文件['images']['name']）；
对于（$i=0；$i<$cpt；$i++）{
$_FILES['images']['name']=$FILES['images']['name'][$i]；
$\u文件['images']['type']=$FILES['images']['type'][$i]；
$\u FILES['images']['tmp_name']=$FILES['images']['tmp_name'][$i]；
$\u文件['images']['error']=$FILES['images']['error'][$i]；
$\u文件['images']['size']=$FILES['images']['size'][$i]；
如果（$this->upload->do_upload（'images'））{
$upload_data=$this->upload->data（）；
$file_name=$upload_data['file_name']；
$package->create_image（数组（'image_location'=>$file_name））；
}
}
重定向（'admin/packages/'）；
}
}
查看代码：
<div class="container">
<?= form_open_multipart('admin/images/create/' . $this->uri->segment(4)) ?>
<div class="row">
<div class="col-md-8 publish">
<h4>Image Gallery</h4>
<div class="line"></div>
<ul>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
<div class="input-group control-group after-add-image">
<label><input type="file" name="images[]"></label>
<div class="input-group-btn">
<button class="btn btn-success add-image" type="button"><i class="glyphicon glyphicon-plus"></i> Add</button>
</div>
</div>
</ul>
<div class="line"></div>
<?= form_submit('', 'Submit', 'class="publish-btn"') ?>
<?= form_close()?>
<div class="clear-all"></div>
<!-- Copy Fields-These are the fields which we get through jquery and then add after the above input,-->
<div class="copy-field" style="display: none">
<div class="control-group input-group" style="margin-top:10px">
<label><label><input type="file" name="images[]"></label></label>
<div class="input-group-btn">
<button class="btn btn-danger delete" type="button"><i class="glyphicon glyphicon-delete"></i> Remove</button>
</div>
</div>
</div>
<script type="text/javascript">
$(document).ready(function() {
//here first get the contents of the div with name class copy-fields and add it to after "after-add-more" div class.
$(".add-image").click(function(){
var html = $(".copy-field").html();
$(".after-add-image").after(html);
});
//here it will remove the current value of the remove button which has been pressed
$("body").on("click",".delete",function(){
$(this).parents(".control-group").remove();
});
});
</script>
图像库
添加
Codeigniter upload library是为一次上载一次而构建的Codeigniter upload library是为一次上载一次而构建的。它不上载图片，因为上载路径似乎无效。上载文件的问题已解决。问题出在视图文件中，而不是控制器中。表单没有响应函数，因为我正在使用：一个文件数组，因为我要提交多个图像。当我使用：一个文件时，它起作用了。但是我需要同时提交多张图片。我应该怎么做才能克服这个问题，因为我已经尝试了数组机制，但它不起作用。添加这一行我这样做了，但它不起作用我正在动态添加输入字段，就像它不是一个抽象的字段数，它可以是3，4或1未上载图片，因为上载路径似乎无效。上载文件的问题已解决。问题出在视图文件中，而不是控制器中。表单没有响应函数，因为我正在使用：一个文件数组，因为我要提交多个图像。当我使用：一个文件时，它起作用了。但是我需要同时提交多张图片。我应该怎么做才能克服这个问题，因为我已经尝试了数组机制，但它不起作用。添加这一行我这样做了，但它不起作用我动态添加输入字段，就像它不是一个抽象的字段数一样，它可以是3、4或1