我正在学习如何使用codeigniter上传图像,并且当我点击没有任何图像的上传时我得到了错误权限被拒绝,如果我选择图像,它会很好用。我只是希望它会显示我的信息:请上传图片,你能看看我的代码并帮我解决我的问题。 错误说: 这是我的观看代码:
<head>
<title>CI upload images</title>
<meta charset="UTF-8">
</head>
<body>
<div id="gallery">
<?php if(isset($images) && count($images)):
foreach ($images as $image): ?>
<div class="thumb">
<a href="<?php echo $image['url']; ?>">
<img src="<?php echo $image['thumb_url']; ?>"/>
</a>
</div>
?>
<?php endforeach; else: ?>
<div id="blank_gallery">Please upload an Images</div>
<?php endif; ?>
</div>
<div id="upload">
<?php
echo form_open_multipart('gallery');
echo form_upload('userfile');
echo form_submit('upload', 'Upload');
echo form_close();
?>
</div>
</body>
这是我的控制器代码:
class Gallery extends CI_Controller{
function index(){
$this->load->model('Gallery_model');
if($this->input->post('upload')){
$this->Gallery_model->do_upload();
}
$data['images'] = $this->Gallery_model->get_images();
$this->load->view('gallery_view', $data);
}
}
这是我的模特
class Gallery_model extends CI_Model{
var $gallery_path;
var $gallery_path_url;
function __construct(){
parent::__construct();
$this->gallery_path = realpath(APPPATH . '../images');
$this->gallery_path_url = base_url().'images/';
}
function do_upload(){
$config = array(
'allowed_types' => 'jpg|jpeg|gif|png',
'upload_path' => $this->gallery_path,
'max_size' => 2000
);
$this->load->library('upload', $config);
$this->upload->do_upload();
$image_data = $this->upload->data();
$config = array(
'source_image' => $image_data['full_path'],
'new_image' => $this->gallery_path . '/thumbs',
'maintain_ration' => true,
'width' => 150,
'height' => 100
);
$this->load->library('image_lib', $config);
$this->image_lib->resize();
}
function get_images(){
$files = scandir($this->gallery_path);
$files = array_diff($files, array('.','..','thumbs'));
$images = array();
foreach ($files as $files) {
$images []= array(
'url'=> $this->gallery_path_url . $files,
'thumb_url' => $this->gallery_path_url . 'thumbs/' . $files
);
}
return $images;
}
}
你可以帮忙吗?
答案 0 :(得分:1)
'new_image' => $this->gallery_path . '/thumbs',
设置目标图像名称/路径。创建图像副本时,您将使用此首选项。 路径必须是相对或绝对服务器路径,而不是URL。
将new_image设置为文件夹,而不是文件名。使它像$ this-&gt; gallery_path。 '/thumbs/my_new_file.ext'
答案 1 :(得分:0)
您是否可以访问终端?转到项目文件夹的根目录,在终端sudo chmod -R 755 *
或sudo chmod -R 777 *
中键入以下内容
第一种选择在某些项目中存在问题,因此是第二种选择。
答案 2 :(得分:0)
不检查错误,不要直接上传图像。在上传之前检查文件中是否有任何错误。更改您的功能如下:
function index()
{
$this->load->model('Gallery_model');
if ($this->input->post('upload')) {
$errors = $this->Gallery_model->do_upload();
if (!$errors) {
$data['images'] = $this->Gallery_model->get_images();
$this->load->view('gallery_view', $data);
} else {
// your error displaying page.
}
}
}
function do_upload()
{
$error = array();
$config = array(
'allowed_types' => 'jpg|jpeg|gif|png',
'upload_path' => $this->gallery_path,
'max_size' => 2000
);
$this->load->library('upload', $config);
if (!$this->upload->do_upload()) {
$error = array('error' => $this->upload->display_errors());
} else {
$this->upload->do_upload();
$image_data = $this->upload->data();
$config = array(
'source_image' => $image_data['full_path'],
'new_image' => $this->gallery_path . '/thumbs',
'maintain_ration' => true,
'width' => 150,
'height' => 100
);
$this->load->library('image_lib', $config);
$this->image_lib->resize();
}
return $error;
}
有关详细信息,请参阅HERE
答案 3 :(得分:0)
首先验证图像上传与否,然后调整图像大小
$result = array();
if (!$this->upload->do_upload('userfile')) {
$result['error'] = $this->upload->display_errors();
}else {
$image_data = $this->upload->data();
$result['image_data'] = $image_data;
$config = array(
'source_image' => $image_data['full_path'],
'new_image' => $this->gallery_path . '/thumbs',
'maintain_ration' => true,
'width' => 150,
'height' => 100
);
$this->load->library('image_lib', $config);
$this->image_lib->resize();
}
return $result;