One 、lnmp Architecture introduction

LNMP yes web Application software portfolio

Linux+Nginx+Mysql/MariaDB+Perl/PHP/Python

A set of open source software commonly used to build dynamic websites or servers , They are independent procedures , But because it's often used together , Higher and higher compatibility , Together, a powerful WEB Application platform .

LNMP Architecture communication process ：

LNMP It's a cs Architecture platform （client/server framework , The client side / Server architecture ）web The client is based on TCP/IP adopt http The agreement initiates the request , The request may be dynamic or static , All servers judge by the suffix of the request . If it is static, it is determined by web The server handles it itself , Then send the resource to the client . If the request is dynamic, then web The server will go through FSATCGI The agreement was sent to php, adopt php Module to MySQL Take the data and pass Nginx Give it to the client .

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Two 、php Introduce

Download path ：PHP: Hypertext Preprocessorhttps://www.php.net/

php meaning ：Hypertext Preprocessor Hypertext processor

php It's a kind of server-side HTML Scripting language , It's a simple 、 Object oriented 、 Interpretive 、 Robust 、 Safe 、 Very high performance 、 Architecture independent 、 portable 、 Dynamic scripting language . It is widely used in Open Source（ Open source ） Especially suitable for Web Develop and embed HTML Multi purpose scripting language .

php What can be done ：

1）php Can do static website ： Static website （ All are static pages that request already exists , No interaction with the database is required ）, Usually, the request file is in the path + file name .html/htm

2）php Can also do dynamic website , Users can interact with the server （ The server can interact with the database ）
PHP Responsible for handling requests submitted by users , Associate with a database , from PHP Operate the database for data interaction .

3、 ... and 、web The server

Website ： A collection of multiple web pages .
User access ：http://www.itcast.cn/teacher.html（URL： The absolute path of the Internet ）
Webmaster ： A website is a folder （ Local absolute path ）

Requests for static pages ：http://localhost/index.html

Request step ：
1. The user inputs the domain name of the website to be visited and the specific web page file to be requested in the browser
2. Domain name resolution ： Find the local first hosts file , Then find the Internet DNS
3.web Server receives request , Get request file index.html
4.web Server return index.html
5. Browser parsing html Code , Display the data
 

Dynamic page request ：http://localhost/index.php

Request step ：
1. The user inputs the domain name of the website to be visited and the specific web page file to be requested in the browser
2. Domain name resolution ： Find the local first hosts file , Then find the Internet DNS
3.web Server receives request , Get request file index.php
4. take index.php Documents to php Engine processing
5.php Engine parsing php Code , If you want to connect to the database, call mysql Expand , To manipulate the database , Finally, after parsing, it becomes html file
6.php The engine will generate html Documents to Nginx
7.web Server return index.php The final result is html file
8. Browser parsing html Code , Display the data

Four 、php Source code installation

Before installation, make sure that no other version of php

rpm -qa | grep php

Download source package installation ：

tar jxf php-7.4.6.tar.bz2
cd php-7.4.6

./configure --prefix=/usr/local/lnmp/php --with-config-file-path=/usr/local/lnmp/php/etc --enable-fpm --with-fpm-user=nginx --with-fpm-group=nginx  --with-curl --with-iconv --with-mhash --with-zlib --with-openssl --enable-mysqlnd --with-mysqli --with-pdo-mysql --disable-debug --enable-sockets --enable-soap --enable-inline-optimization --enable-xml --enable-ftp --enable-gd --enable-exif --enable-mbstring  --enable-bcmath --with-fpm-systemd

make 

make install
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  Errors encountered during compilation , Install the corresponding packages and libraries ：

 Resolve dependencies 
[[email protected] php-7.4.12]# yum install -y systemd-devel.x86_64
[[email protected] php-7.4.12]# yum install -y libxml2-devel.x86_64
[[email protected] php-7.4.12]# yum install -y sqlite-devel.x86_64
[[email protected] php-7.4.12]# yum install -y libcurl-devel.x86_64
[[email protected] php-7.4.12]# yum install -y libpng-devel.x86_64

[[email protected] ~]# yum install -y  oniguruma-6.8.2-1.el7.x86_64.rpm oniguruma-devel-6.8.2-1.el7.x86_64.rpm
 The above two packages can be downloaded from Alibaba cloud 

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 6） Go to Alibaba cloud to download the package that cannot be found

  After the corresponding packages are installed , Again configure compile , success