1.建立了一个名为sitemap的控制器
if (!defined('BASEPATH'))
exit ('No direct script access allowed');
class Sitemap extends CI_Controller{
public function __construct() {
parent::__construct();
$this->load->model('sitemapxml');
}
function index(){
$data['posts']=$this->sitemapxml->getArticle();
$data['categorys']=$this->sitemapxml->getCategory();
$this->load->view('sitemap.php',$data);
}
}
首先加载sitemapxml模型类,index方法调用两个方法,分别获取文章列表和类别列表,以在模板中输出。
2.创建一个名为sitemapxml的模型
class Sitemapxml extends CI_Model{
public function __construct() {
parent :: __construct();
$this->load->database();
}
public function getArticle(){
$this->db->select('ID,post_date,post_name');
$this->db->order_by('post_date', 'desc');
$result=$this->db->get('posts');
return $result->result_array();
}
public function getCategory(){
$this->db->select('c_sname');
$result=$this->db->get('category');
return $result->result_array();
}
}
模型里面定义两个方法,获取文章列表和类别列表。
3.创建一个名为sitemap.php的模板
echo htmlspecialchars('').'
';
echo htmlspecialchars('
';
//首页单独写一个url
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
//类别页
foreach ($categorys as $category){
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
}
//文章页
foreach ($posts as $post){
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
}
//留言板
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
';
echo htmlspecialchars('
?>
最重要的就是这个模板了,按照sitemap.xml的标准格式,从数据库中读取相关数据,用循环的方式自动生成这样的格式,页面上展示的是html形式的xml的内容。
然后再用一个很笨的方法,将生成的html文本(实际上就是xml文件的显示内容),复制到一个新建的sitemap.xml文件,格式化一下,保存,就产生了一个标准的sitemap.xml文件。因为要用的SAE部署应用,目录不支持写操作,只能这样上传了,隔一段时间这样弄一下就ok了。

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Atom editor mac version download
The most popular open source editor

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

Dreamweaver CS6
Visual web development tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),