I feel like I haven't slept well...-shenmedoumeixie...., I feel like I haven't slept well_PHP Tutorial

I feel like I haven’t slept well...-shenmedoumeixie...., I feel like I haven’t slept well when I sleep

　hi

I didn’t sleep well last night. Although my dreams were sweet, I couldn’t sleep well and didn’t have the energy to do scientific research. . .

1. jQuery

12. Create a chat room

12.1 Basic Functions

Log in;

Real-time communication without refreshing;

Supports emoticons.

12.2 Approximate effect

Login -> Verification, plan to use AJAX;

Chat -> Just implement specific functions in PHP.

12.3 Data flow analysis

Login page: Get username and password to request login - return to chat page or failure information and login page;

Chat page: request and return of chat content (implementing updated data without refreshing); request and return of online personnel information; handle requests to send content and write chat content.

12.4 Landing Page Development

--------Suddenly I found that I need knowledge of AJAX, but I don’t want to look at ajax today. I’ll come back on the weekend. . . ----------

2. PHP realizes page staticization (1)

1. Introduction to staticization

1.1, dynamic pages and static pages

Dynamic: execute dynamic programs, php, jsp, etc.; such as php, syntax analysis, compile and then run.

Static: html and other files.

1.2. About optimizing page response time

--Main means

Staticization of dynamic pages - the focus of this section;

Optimize database;

Use load balancing;

Use cache;

--Staticization of dynamic pages

Scenario: Some content on the page does not change frequently;

Essence: Generate static HTML files; (Reduce the execution steps and save time)

Reduce response time, importantly reduce server load.

Not suitable for Weibo and other websites that update quickly.

1.3 About setting static form of dynamic URL address

http://state.com/index.php?c=play&a=index&id=8123

changes to

http://state.com/play/8123.shtml

This process is still pseudo-static for the time being (actually it is still a dynamic file, just with a different vest).

1.4 PHP static

--Purely static

Real static files generated by php program.

It is divided into local pure static (/local dynamic, the implementation method may be asynchronous operation of ajax) and global pure static.

--Pseudo-static

Convert URL address to something like html.

2. Pure static case implementation

2.1 buffer

--Overview

is actually a buffer , a memory address space used to store data.

To achieve staticization, we need to focus on the buffer.

For example, the buffer in the computer system means that when there is data to be stored, a certain buffer needs to be filled first and then written to the disk.

--Process

Content——php buffer——tcp——terminal

--Use

echo 1;echo "
";
echo ob_get_contents();

If it is not enabled, either change php.ini or add a header file

ob_start();

2.2 Implement pure staticization

--Basic method

file_put_contents()

output_buffering()

http://www.bkjia.com/PHPjc/1078682.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1078682.htmlTechArticleI feel like I didn’t sleep well...-shenmedoumeixie...., I feel like I didn’t sleep well last night hi If you sleep well, your dreams will be sweet, but if you don’t sleep well, you won’t be able to do scientific research. . . 1. jQuery 12. Implement chat...