


Solution to the problem of using strrev to flip Chinese garbled characters in PHP
The example in this article describes the solution to the problem of using strrev to flip Chinese garbled characters in PHP. Share it with everyone for your reference, the details are as follows:
When using strrve in PHP to flip Chinese, garbled characters will appear
For example:
header("Content-Type: text/html; charset=utf-8"); echo strrev("处理使用strrev()函数时的乱码问题")."<br>";
The running result is:
��鮗遠籹䄚綗氕潇�)(verrts��翽䆐焤�
The solution is to rewrite a cnstrrev function yourself
header("Content-Type: text/html; charset=utf-8"); $str = '处理使用strrev()函数时的乱码问题'; function cnstrrev($str) { $len = strlen($str); for($i = 0; $i < $len; $i++) { $char = $str{0}; if(ord($char) > 127) //ord()函数取得第一个字符的ASCII码,如果大于0xa0(127)的话则是中文字符 { $i+=2;//utf-8编码的情况下,一个中文字符占三个字节 if($i < $len) { $arr[] = substr($str, 0, 3);//utf-8编码的情况下,一个中文字符占三个字节 $str = substr($str, 3); } } else { $arr[] = $char; $str = substr($str, 1);//否则为非中文,占一个字符 } } return join(array_reverse($arr));//以相反的元素顺序返回数组: } echo $str.'+'.cnstrrev($str);
The running result is:
处理使用strrev()函数时的乱码问题+题问码乱的时数函)(verrts用使理处
I hope this article will be helpful to everyone in PHP programming.
For more related articles on how to solve the problem of using strrev to flip Chinese garbled characters in PHP, please pay attention to the PHP Chinese website!

Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.

The article discusses PHP, detailing its full form, main uses in web development, comparison with Python and Java, and its ease of learning for beginners.

PHP handles form data using $\_POST and $\_GET superglobals, with security ensured through validation, sanitization, and secure database interactions.

The article compares PHP and ASP.NET, focusing on their suitability for large-scale web applications, performance differences, and security features. Both are viable for large projects, but PHP is open-source and platform-independent, while ASP.NET,

PHP's case sensitivity varies: functions are insensitive, while variables and classes are sensitive. Best practices include consistent naming and using case-insensitive functions for comparisons.


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

Atom editor mac version download
The most popular open source editor

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Zend Studio 13.0.1
Powerful PHP integrated development environment
