get_post()(获取一篇文章)
get_post() 函数可以根据 ID 查询一篇文章的信息,还能返回循环中的当前文章。
用法
get_post( $post, $output, $filter );
参数
$id
(整数 | 对象)(可选)文章 ID 或者文章对象,如果为空则自动设置成当前文章。
默认值:null(当前文章)
$output
(字符串)(可选)返回结果的形式,可选:
- OBJECT:返回一个文章对象
- ARRAY_A:返回带键值的数组
- ARRAY_N:返回不带键值的数组
- 默认值:OBJECT
$filter
(字符串)(可选)文章信息过滤方法。具体参考 sanitize_post_field() 函数。
默认值:row
返回值
(对象 | null | 数组)返回文章对象、数组或 null.
例子
获取 ID 为 7 的文章并打印输出它的标题:
$post_7 = get_post( 7 ); $title = $post_7->post_title;
获取 ID 为 7 的文章(数组形式)并打印输出它的标题:
$post_7 = get_post( 7, ARRAY_A ); $title = $post_7['post_title'];
其它
此函数位于:wp-includes/post.php 和 wp-includes/class-wp-atom-server.php
获取分类链接
在 WordPress 开发中,经常需要获取分类的链接。
知道分类 ID 的话只需要使用 get_category_link() 函数即可直接获取到。
但在实际情况中可能只知道一点分类信息,下边我介绍一下通过各种分类信息获取分类链接的方法。
根据分类 ID 获取分类链接
根据 ID 获取分类链接比较简单,直接使用 get_category_link() 函数即可。
echo get_category_link( 23 );
根据分类别名获取分类链接需要多一个步奏,先用 get_category_by_slug() 函数根据别名获取到分类,然后再获取分类链接。
echo get_category_link( get_category_by_slug( 'tips' ) );
根据分类名获取分类链接
根据分类名获取分类链接和根据分类别名获取原理类似,都是先获取到分类,再获取链接。
echo get_category_link( get_cat_ID( 'WordPress 教程' ) );

To protect the application from session-related XSS attacks, the following measures are required: 1. Set the HttpOnly and Secure flags to protect the session cookies. 2. Export codes for all user inputs. 3. Implement content security policy (CSP) to limit script sources. Through these policies, session-related XSS attacks can be effectively protected and user data can be ensured.

Methods to optimize PHP session performance include: 1. Delay session start, 2. Use database to store sessions, 3. Compress session data, 4. Manage session life cycle, and 5. Implement session sharing. These strategies can significantly improve the efficiency of applications in high concurrency environments.

Thesession.gc_maxlifetimesettinginPHPdeterminesthelifespanofsessiondata,setinseconds.1)It'sconfiguredinphp.iniorviaini_set().2)Abalanceisneededtoavoidperformanceissuesandunexpectedlogouts.3)PHP'sgarbagecollectionisprobabilistic,influencedbygc_probabi

In PHP, you can use the session_name() function to configure the session name. The specific steps are as follows: 1. Use the session_name() function to set the session name, such as session_name("my_session"). 2. After setting the session name, call session_start() to start the session. Configuring session names can avoid session data conflicts between multiple applications and enhance security, but pay attention to the uniqueness, security, length and setting timing of session names.

The session ID should be regenerated regularly at login, before sensitive operations, and every 30 minutes. 1. Regenerate the session ID when logging in to prevent session fixed attacks. 2. Regenerate before sensitive operations to improve safety. 3. Regular regeneration reduces long-term utilization risks, but the user experience needs to be weighed.

Setting session cookie parameters in PHP can be achieved through the session_set_cookie_params() function. 1) Use this function to set parameters, such as expiration time, path, domain name, security flag, etc.; 2) Call session_start() to make the parameters take effect; 3) Dynamically adjust parameters according to needs, such as user login status; 4) Pay attention to setting secure and httponly flags to improve security.

The main purpose of using sessions in PHP is to maintain the status of the user between different pages. 1) The session is started through the session_start() function, creating a unique session ID and storing it in the user cookie. 2) Session data is saved on the server, allowing data to be passed between different requests, such as login status and shopping cart content.

How to share a session between subdomains? Implemented by setting session cookies for common domain names. 1. Set the domain of the session cookie to .example.com on the server side. 2. Choose the appropriate session storage method, such as memory, database or distributed cache. 3. Pass the session ID through cookies, and the server retrieves and updates the session data based on the ID.


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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot 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),

SublimeText3 English version
Recommended: Win version, supports code prompts!

WebStorm Mac version
Useful JavaScript development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

SublimeText3 Linux new version
SublimeText3 Linux latest version