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Single Sign On (SSO) is not unfamiliar to us. For large systems, using SSO can reduce a lot of trouble for users. Take Baidu for example. Baidu has many subsystems - Baidu Experience, Baidu Knows, Baidu Library, etc. If we need to enter a u...

Everyone has used the attribute enctype="multipart/form-data" when uploading files using a form. What is the role of multipart/form-data? Let's talk about this topic. First, let's look at a case Look at the first code   form action= "handl...

As a data format of form, application/x-www-form-urlencoded has its own characteristics   form action= "handle.php" method= "post"    input type= "text" name= " uname"   class= " uname" /br /    input type= "text" name= "email" class=...

Recently, I encountered such a project at work (temporarily named Project A). Project A itself was developed in PHP, but its data came from another project developed in Java (temporarily named Project B). Project A could not operate the dat...

When I first started learning Webservice, I found that there were quite a lot of knowledge points involved, and each point could be a school of its own. Especially when I saw WSDL, I looked up information for a long time, but I was still a...

With the rise of HTML5 Websockets, web chat applications are becoming more and more popular. Recently, I am working on a mobile web application, the core function of which is to implement web chat on the mobile phone. Of course, the functio...

This article will share with you an example of using socket.io to realize the function of group chat. If you want to use socket.io, you must use nodejs to implement the server, so we need to install socket.io in nodejs Install socket.io How...

Since I am a PHP programmer, I often have to build a PHP operating environment. The popular nginx+php environment is very popular, and the mode it adopts is the FastCGI method, so I spent some time to learn about FastCGI. CGI (Common Gatewa...

In "First Contact with CGI", we mentioned the operating mechanisms of CGI and Server APIs, as well as their respective advantages and disadvantages. In this chapter, we will learn about FastCGI, which combines the advantages of CGI and Serv...

At this stage, load balancing is a widely used technology. Nginx, as a load balancing server for http, is being used more and more widely. There are three ways to set up Nginx load balancing: Round-robin - This method distributes access req...

In Nginx load balancing, it is difficult to guarantee that every application server can run normally all the time. However, we can set Nginx to detect these application servers and detect which of them are inaccessible. There are two ways t...

As the project grows, more people are needed to participate in the development of the same project. SVN is used for multiple people to jointly develop the same project and share resources. There are two ways to run SVN server: one is as a s...

In the article "Two Ways to Operate Redis with PHP" , we introduced how to use PHP to encapsulate phpredis. However, we don't know much about the underlying redis protocol. This article briefly introduces the Redis protocol to facilitate yo...

The concept of cluster is not complicated. It is actually multiple computers working together for the same goal. In Web applications, multiple servers provide services for a site. The first step to build a PHP cluster is to set up load bala...