php下session入memcached
windows7 32位环境下所需软件
一、安装Apache2.4+PHP5.6
Apache2.4配置httpd.conf
参考文章:http://jingyan.baidu.com/article/fcb5aff797ec41edaa4a71c4.html
ServerRoot "c:/Apache24"
Listen 8080
DocumentRoot "c:/Apache24/htdocs"
# php5 support
LoadModule php5_module c:/php-5.6.15-Win32-VC11-x86/php5apache2_4.dll
AddType application/x-httpd-php .php .html .htm
# configure the path to php.ini
PHPIniDir "c:/php-5.6.15-Win32-VC11-x86"
memcache存放超过三十天的数据,0表示永不过期,expire最大是30*3600*24秒
bool Memcache::add ( string $key , mixed $var [, int $flag [, int $expire ]] )
time()+天数*3600*24即可
memcached无用户名和密码机制,启用防火墙封杀11211端口
只允许本地访问11211端口
iptables -a input -p tcp -s 127.0.0.1 -dport 11211 -j ACCEPT
二、session入memcached
//传统的代码
session_start();
$_SESSION['name']='天龙八部';
//取出
$name=$_SESSION['name'];
echo "name=$name";
?>
传统php.ini中配置session存放在文件中
[Session]
session.save_handler=files
session.save_path="c:/windows/temp"
修改php.ini文件,加载php_memcache.dll(版本要与php版本一致,放在php安装目录下的ext目录)
extension=C:\php-5.6.15-Win32-VC11-x86\ext\php.memcache.dll
session.save_handler=memcache
session.save_path="tcp://127.0.0.1:11211"
session入memcache代码
session_start();
$_SESSION['name']='天龙八部100';
$_SESSION['city']='beijing';
//如果session数据入mem,那它一定是以session_id为key值进行添加
//取出
$name=$_SESSION['name'];
echo "name=$name";
echo "sessionid=".session_id();
?>
如果不使用memcache php.memcache.dll扩展支持,可以使用memcached_client.php原生函数,只不过效率低
如果管理员不让我们修改php.ini文件,我们如何实现session入memcached功能,我们通过ini_set函数动态修改php.ini的配置,只作用于本页面,别的php页面不受影响,配置文件也不会被修改
ini_set("session.save_handler","memcache");
ini_set("session.save_path","tcp://127.0.0.1:11211");

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

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

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

Hot Topics

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

Session hijacking can be achieved through the following steps: 1. Obtain the session ID, 2. Use the session ID, 3. Keep the session active. The methods to prevent session hijacking in PHP include: 1. Use the session_regenerate_id() function to regenerate the session ID, 2. Store session data through the database, 3. Ensure that all session data is transmitted through HTTPS.

The enumeration function in PHP8.1 enhances the clarity and type safety of the code by defining named constants. 1) Enumerations can be integers, strings or objects, improving code readability and type safety. 2) Enumeration is based on class and supports object-oriented features such as traversal and reflection. 3) Enumeration can be used for comparison and assignment to ensure type safety. 4) Enumeration supports adding methods to implement complex logic. 5) Strict type checking and error handling can avoid common errors. 6) Enumeration reduces magic value and improves maintainability, but pay attention to performance optimization.

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

RESTAPI design principles include resource definition, URI design, HTTP method usage, status code usage, version control, and HATEOAS. 1. Resources should be represented by nouns and maintained at a hierarchy. 2. HTTP methods should conform to their semantics, such as GET is used to obtain resources. 3. The status code should be used correctly, such as 404 means that the resource does not exist. 4. Version control can be implemented through URI or header. 5. HATEOAS boots client operations through links in response.

In PHP, exception handling is achieved through the try, catch, finally, and throw keywords. 1) The try block surrounds the code that may throw exceptions; 2) The catch block handles exceptions; 3) Finally block ensures that the code is always executed; 4) throw is used to manually throw exceptions. These mechanisms help improve the robustness and maintainability of your code.

The main function of anonymous classes in PHP is to create one-time objects. 1. Anonymous classes allow classes without names to be directly defined in the code, which is suitable for temporary requirements. 2. They can inherit classes or implement interfaces to increase flexibility. 3. Pay attention to performance and code readability when using it, and avoid repeatedly defining the same anonymous classes.
