Php 如何在CodeIgniter上上载图像并将其显示在另一个页面上
我仍在学习codeigniter框架,刚刚完成了新闻应用程序教程,它允许您为故事创建一个带有标题和一些文本的新闻项目。如何让用户能够上传带有新闻项的图像,并在查看相应新闻项时显示每个图像 如果我犯了任何错误,请原谅,这是我的第一个问题 create.phpPhp 如何在CodeIgniter上上载图像并将其显示在另一个页面上,php,mysql,codeigniter,image-uploading,Php,Mysql,Codeigniter,Image Uploading,我仍在学习codeigniter框架,刚刚完成了新闻应用程序教程,它允许您为故事创建一个带有标题和一些文本的新闻项目。如何让用户能够上传带有新闻项的图像,并在查看相应新闻项时显示每个图像 如果我犯了任何错误,请原谅,这是我的第一个问题 create.php <h2>Create a news item</h2> <?php echo validation_errors(); ?> <?php echo form_open('news/create')
<h2>Create a news item</h2>
<?php echo validation_errors(); ?>
<?php echo form_open('news/create') ?>
<?php echo form_open_multipart('upload/do_upload');?>
<input type="file" name="userfile" size="20" />
<label for="title">Title</label>
<input type="input" name="title" /><br />
<label for="text">Text</label>
<textarea name="text"></textarea><br />
<input style="margin-left: 18%; margin-right: 20%;" type="submit" name="submit" value="PUBLISH" />
</form>
创建新闻项目
标题
正文
news_model.php
<?php
class News_model extends CI_Model {
public function __construct()
{
$this->load->database();
}
public function get_news($slug = FALSE)
{
if ($slug === FALSE)
{
$this->db->order_by("id", "desc");
$query = $this->db->get('news');
return $query->result_array();
}
$query = $this->db->get_where('news', array('slug' => $slug));
return $query->row_array();
}
public function set_news()
{
$this->load->helper('url');
$slug = url_title($this->input->post('title'), 'dash', TRUE);
$data = array(
'title' => $this->input->post('title'),
'slug' => $slug,
'text' => $this->input->post('text')
);
return $this->db->insert('news', $data);
}
}
查看文档中的upload类:
提示:将文件保存到服务器,然后将URL保存到数据库中,然后可以在IMG标记中显示URL。解决方案是:
img src=”“class=“img响应”
<?php
class News extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model('news_model');
}
public function index(){
$data['news'] = $this->news_model->get_news();
$data['title'] = 'News archive';
$this->load->view('templates/header', $data);
$this->load->view('templates/rightpane', $data);
$this->load->view('news/index', $data);
$this->load->view('templates/footer');
}
public function view($slug)
{
$data['news_item'] = $this->news_model->get_news($slug);
if (empty($data['news_item']))
{
show_404();
}
$data['title'] = $data['news_item']['title'];
$this->load->view('templates/header', $data);
$this->load->view('templates/rightpane', $data);
$this->load->view('news/view', $data);
$this->load->view('templates/footer');
}
public function create()
{
$this->load->helper('form');
$this->load->library('form_validation');
$data['title'] = 'Create a news item';
$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('text', 'text', 'required');
if ($this->form_validation->run() === FALSE)
{
$this->load->view('templates/header', $data);
$this->load->view('templates/rightpane', $data);
$this->load->view('news/create');
$this->load->view('templates/footer');
}
else
{
$this->news_model->set_news();
$this->load->view('news/success');
}
}
}
<?php
echo '<h2>'.$news_item['title'].'</h2>';
echo $news_item['text'];`
<?php foreach ($news as $news_item): ?>
<div style="margin-left: 18%; margin-right: 20%;">
<h2 ><?php echo $news_item['title'] ?></h2>
<div id="main" >
<?php echo $news_item['text'] ?>
</div>
<p ><a href="news/<?php echo $news_item['slug'] ?>">View article</a></p>
</div>
<?php endforeach ?>