How many PHP scripts have been written? _ SERVER В ㄥ? $ _ SERVER ﹁ В? /P> Listen to 1 speaker? _ SESSION ['php _ SELF '] -- when the peak traffic is too large, too many other requests? Why? _ SERVER ['Se PHP has already been used before? _ SERVER ﹁
SERVER variables in PHP $ _ SERVER explanation SERVER variables $ _ SERVER explanation: 1. $ _ SESSION ['php _ SELF '] -- get the file name of the script being executed 2. $ _ SERVER ['server _ protocol'] -- the name of the communication PROTOCOL
PhpQQ login session [state] has been unable to find the virtual space for solving the easy-to-contact host (do not know whether it is related to this) using QQsdkphp for QQ login follow the steps to set config and session file end only one session.
SERVER variable $ _ SERVER details: 1. $ _ SESSION [PHP_SELF] -- get the file name of the currently executing Script 2, $ _ SERVER [SERVER_PROTOCOL] -- the name and version of the communication protocol when requesting the page. For example, HTTP1.0.
1. $ _ SESSION [PHP_SELF] -- get the file name of the currently executing Script 2, $ _ SERVER [SERVER_PROTOCOL] -- the name and version of the communication protocol when requesting the page. For example, "HTTP1.0 ". 3. $ _ SERVER [REQUEST_TIME] --
Let's talk about the optimization skills of the Laravel 5 Framework of the PHP program.
Laravel is a powerful framework with many components and huge Code. Its ease of use sacrifices performance. Even so, Laravel is still an excellent framework,
This tutorial mainly uses jquery ajax to implement advance verification of the jquery php verification code without refreshing it.
This tutorial mainly uses jquery ajax to implement the advance verification of the verification code in the jquery php
Use Laravel to develop applications and copy the original code. The previous code session used $ _ SESSION, which was supposed to run well after transplantation because it was not dependent on other components, the result shows thisUndefined
These two days again installed the virtual machine, but also compile lnmp, and to get all kinds of expansion, very troublesome, can directly yum installation. The answer is yes. 1, the first to update Yum source, otherwise it must be the old version,
What's the relationship between session and cookies?Cookies are also technologies that are generated by HTTP stateless features. It is also used to save the identity of the visitor and some data. Each time the client initiates an HTTP request, the
Code implementation
First create the data table, the MySQL SQL statement is as follows:
The code is as follows
Copy Code
CREATE TABLE ' Sess ' (' Sesskey ' varchar not NULL default ',' Expiry ' bigint not NULL default '
This is only I find a number of solutions on the Internet, to solve the problems I encountered, do a record, buy this server is to test swoole, the results are almost expired, swoole not installedThanks
In Centos7, the PHP7 is installed via Yum, which is first run at the terminal:
You need to install Epel-release first.
1. Install Epel-release
by command:
Yum-y Install Epel-release
Successfully installed.
2. Install PHP7
Centos/rhel
The PHP session variable is used to store information about user sessions, or to change settings for user sessions. The session variable holds information that is a single user and is available to all pages in the application.
Understanding: Session
Brief introduction
There are three configuration items in php.ini:
Session.save_path= ""--set the storage path for the sessionSession.save_handler= ""--set user-defined storage functions, if you want to use the PHP built-in session storage
Page Cachingpage caching refers to the content of the entire page that is cached on the server side. Then, when the same page is requested, the content is taken out of the cache, not regenerated.
Page caching is supported by the
Session
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 as a
This article mainly introduces the Session generation, recovery, and storage mechanisms in php, which can help you have a comprehensive understanding of Sessions. For more information, see
1. session generation mechanism in php
Let's analyze how a
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