what session php

The HTTP protocol is the protocol that the Web server communicates with the client (browser), which is a stateless protocol. The so-called stateless, refers to the HTTP request data is not maintained, the HTTP request is independent, non-persistent.

1. Session Concept 02. HTTP protocol and status hold 03. Understanding Cookies 04. The session generation mechanism in PHP 25. The expiration recovery mechanism of the session in PHP 36. Client storage mechanism for session in PHP 41. Session

Every PHP beginner may encounter the same problem when using SESSION, that isWarning: open (/tmp/sess_7a8c81039d7cba3f9a868bc90f821526, O_RDWR) failed: m (2) in YOUR_PHP_FILE_PATHsession.php on line 2This is not because your PHP version is not high

Getenv obtains the environment variable of the system.Syntax: string getenv (string varname); ----------- the varname parameter should be $ _ SERVER (SERVER super global variable array) or use putenv ("new = very new") to define new as the

PHP generated Verification code image PHP code to generate the principle: the use of PHP's GD library, generate a picture with a verification code, and save the Verification code in the session. PHP generated verification code of the approximate

1. Multidimensional arrays2, date, D-Represents the day of the month (01-31) M-Denotes month (01-12) Y-Represents the year (four digits) 1-Indicates the day of the week ©2010- H-12 hour format with first zero I-

In the development of Web applications, people often use the session to store data. However, some people may not know that in PHP, the use of the session may cause concurrency problems. Plus91 Technologies Senior Engineer Kishan Gor, a software

Ci framework (I), ci framework ( Ci directory structure | ----- System Framework Program directory | ----- core program of the core framework | ----- CodeIgniter. php guided file | ----- Common. php loads public functions of the base class library |

The Session is stored on the server as a text file, so the client is not afraid to modify the Session content. In fact, in the Session file on the server side, PHP automatically modifies the session file permissions, only retaining the system read

EAccelerator is an excellent PHP accelerator. By caching compiled PHP code files, the PHP compilation overhead on the server is almost zero. The overhead of the eAccelerator is also very small. The latest PHP5.4.8 installation of eAccelerator

ZendConfigIni. phpZendApplicationBootstrapBootstrap. phpZendApplicationBootstrapBootstrapAbstract. phpZendApplicationBootstrapBootstrapper. phpZendApplicationBootstrapResourceBootstrapper... zend \ Config \ Ini. phpZend \ Application \ Bootstrap.

Laravel 5 framework performance optimization skills, laravel Performance Optimization Performance has always been a criticism of the Laravel framework, so tuning Laravel programs is a required skill. Next, I will share some development best

Copyright Notice: This article reproduced self-trace memory Original address: http://www.onmpw.com/tm/xwzj/network_144.html For reprint please contact the Cloud College team member Nanjiao, email: ruanqy#tingyun.com The concept of clustering is

Find PHP blocking functions There is such a requirement that a.php execution cannot end after completion and needs to be blocked there. The b.php then communicates with the outside and transfers the externally-transmitted data to the a.php in the

PHP does not execute Setcookie () does not execute if (Setcookie ("Namedd", "Dede", Time () +3600)) echo "Chengong"; Else "Shibai"; echo "Wocaocao"; echo "Hello everyone!"; Setcookie ("passwddd", "86898162", Time () +3600); ?>

1, the generation mechanism of the session in PHPLet's start by analyzing how a session is generated in PHP. The purpose of the session is to maintain the various states of each user to compensate for the lack of HTTP protocol (stateless). We now

Cookies are stored in a plain text file on the clientUser Request Server ScriptThe script sets the cookie content and sends the cookie content via Http-response to the client and saves it locally on the clientWhen the client sends the HTTP request

Comparing the cookie,session is stored on the server side of the session, relatively secure, and does not have the storage length limit as cookies do, this article briefly describes the use of sessions. because the session is stored in the form of

Java developers know that Tomcat is used to deploy Java Web projects. A few days ago, the old K accidentally learned that Php/java Bridge, through it can be implemented between the JSP and PHP sharing session, see "How to implement JSP and PHP

session_id () function:Gets the set current reply ID.Function Description:String session_id ([string $id])Parameters:If the parameter $id is specified, then the function replaces the current reply ID. The session_id () function must be called before