Tutorial on setting up PHP environment under Linux

How to build a PHP environment under Linux: first obtain the PHP, Apache and MySQL installation packages; then install Apache and modify the configuration file httpd.conf; then install MySQL and make basic configurations; finally install PHP and configure php.ini is enough.

Recommended: "PHP Video Tutorial"

LAMP is a very popular web development environment at the moment. Many developers will encounter various problems in the process of building LAMP. Thinking of these problems, their heads are about to explode. Today, I specially took the time to record the process of building a PHP development environment for everyone's reference. If you find any problems, I hope you can correct them.

1. Obtain the installation package

• PHP download address: http://cn.php.net/distributions/php-7.1.10.tar.gz
• Apache download address: http://mirrors.tuna.tsinghua.edu.cn/apache//httpd/httpd-2.4.28.tar.gz
• MySQL download address: https://dev.mysql .com/get/Downloads/MySQL-5.7/mysql-5.7.19-linux-glibc2.12-x86_64.tar.gz

2. Install Apache

1. Dependencies Package installation

1) Install compiler gcc, gcc-c

yum install -y gcc gcc-c++

2) Install dependent packages expat-devel, zlib-devel, openssl-devel

yum install -y expat-devel zlib-devel openssl-devel

2) Install the dependent package apr

wget http://mirror.bit.edu.cn/apache//apr/apr-1.6.2.tar.gz
tar zxvf apr-1.6.2.tar.gzcd apr-1.6.2
./configure --prefix=/usr/local/apr
make && make install

3) Install the dependent package apr-util

wget http://mirror.bit.edu.cn/apache//apr/apr-util-1.6.0.tar.gz
tar zxvf apr-util-1.6.0.tar.gzcd apr-util-1.6.0
./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr
make && make install

4) Install the dependent package pcre

wget https://ftp.pcre.org/pub/pcre/pcre-8.41.tar.gz
tar zxvf pcre-8.41.tar.gzcd pcre-8.41
./configure --prefix=/usr/local/pcre
make && make install

Note: Replace apr, apr-util Copy the installation package to the srclib directory of the Apache installation package

Named apr, apr-util respectively, without the subsequent version number

2. Installation process

1) Unzip the Apache installation package

tar zxvf httpd-2.4.28.tar.gz

2) Compile and install

cd httpd-2.4.28
./configure --prefix=/usr/local/server/apache \
--with-apr=/usr/local/apr \
--with-apr-util=/usr/local/apr-util \
--with-pcre=/usr/local/pcre \
--enable-so \
--enable-ssl \
--enable-deflate \
--enable-rewrite \
--enable-headers \
--enable-expires \
--disable-cgid\
--disable-cgi
make && make install

3. Modify the configuration file httpd.conf

vim /usr/local/server/apache/conf/httpd.conf

Remove

# in front of ServerName and change the URL after ServerName to localhost:80

4. Add httpd to the system service and set it to start automatically at boot

1) Add httpd to the system service

cp /usr/local/server/apache/bin/apachectl /etc/init.d/httpd

2) Modify /etc/init.d/httpd and add the following content in line 3

# chkconfig: 345 85 15# description: Activates/Deactivates Apache Web Server

Note: The # in the code cannot be removed

3) Set the system service to start automatically at boot

systemctl enable httpd

4) Start Apache

service httpd start

3. Install MySQL

1. Preparation before installation

1) Unzip the installation package

tar zxvf mysql-5.7.19-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.19-linux-glibc2.12-x86_64 /usr/local/server/mysql

2) Create users and user groups and assign corresponding permissions

groupadd mysql
useradd -r -g mysql mysql -s /sbin/nologin

3) Install dependencies

yum -y install numactl.x86_64

2. Initialize mysql and do basic configuration

1) Initialize mysql

cd /usr/local/server/mysql
bin/mysqld \
--initialize \
--user=mysql \
--basedir=/usr/local/server/mysql \
--datadir=/usr/local/server/mysql/data \

2) Configure mysql

vim my.cnf  # 创建配置文件

This example only ensures that mysql can run normally. For more configuration, please refer to the official documentation

[mysqld]
skip-grant-tablesbasedir   = /usr/local/server/mysqldatadir   = /usr/local/server/mysql/datasocket    = /usr/local/server/mysql/data/mysql.socklog-error = /usr/local/server/mysql/log/error.logport      = 3306[mysql_safe]pid-file  = /var/run/mysql/mysqld.pidlog-error = /usr/local/server/mysql/log/error.log[client]port   = 3306socket = /usr/local/server/mysql/data/mysql.sock

Softly link the configuration file to the /etc/ directory

ln -s /usr/local/server/mysql/my.cnf /etc/my.cnf

Note: If you are prompted that the file exists when creating a soft link, you can delete /etc/my.cnf and then create a soft link

3) Create the directories and files required for database storage information

mkdir /usr/local/server/mysql/data
mkdir /usr/local/server/mysql/log
mkdir /var/run/mysql
touch /usr/local/server/mysql/log/error.log

4) Set the directory owner

chown -R mysql:mysql /usr/local/server/mysql/
chown -R mysql:mysql /var/run/mysql/

3. Set environment variables and auto-start

1) Set environment variables

Edit profile file

vim /etc/profile

Add the following information to the end of profile

export PATH=$PATH:/usr/local/server/mysql/bin

Make the environment variables take effect immediately

source /etc/profile

2) Set up auto-start at boot

cp support-files/mysql.server /etc/init.d/mysqld  
chkconfig --add mysqld
chkconfig mysqld on

4. Firewall settings

CentOS has the firewall enabled by default. Below we use firewall to open the 3306l port

1) Let’s check before opening it. Is port 3306 open?

firewall-cmd --query-port=3306/tcp

2) If not, open the firewall firewall

systemctl start firewalld.service

3) We can choose to temporarily open or permanently open port 3306

firewall-cmd --add-port=3306/tcp  # 临时开启3306端口  
firewall-cmd --permanent --zone=public --add-port=3306/tcp  # 永久开启3306端口

4) Restart the firewall

firewall-cmd --reload

5. Start mysql and set the root user password

1) Start mysql

/usr/local/server/mysql/support-files/mysql.server start  # 启动MySQL
/usr/local/server/mysql/bin/mysql -uroot -p  # 这里直接回车，无须输入密码

2) Set the root user password

use mysql;update user set authentication_string=password('root') where user='root';
exit;

Note 1: After successfully changing the password, log out of skip-grant-tables in the configuration file

Restart mysql and log in again using the root user, and then execute the following code

set password=password('root');

Note 2: Second It is a system requirement to reset the password once, otherwise the database cannot be operated

6. Remote access

1) Give any host permission to access mysql

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'your password' WITH GRANT OPTION;

2) Make the permission modification take effect

FLUSH PRIVILEGES;

4. Install PHP

1. Installation steps

1) Installation Dependency package libxml-devel

yum -y install libxml2-devel

2) Unzip the PHP installation package

tar zxvf php-7.1.10.tar.gz

3) Compile and install

cd php-7.1.10
./configure --prefix=/usr/local/server/php \
--with-apxs2=/usr/local/server/apache/bin/apxs \
--with-config-file-path=/usr/local/server/php \
--with-pdo-mysql
make && make install

2. Configure php. ini

1) Copy the configuration file to the PHP installation directory

cp php.ini-* /usr/local/server/php/

2) Generate php.ini

cp php.ini-development /usr/local/server/php/php.ini

3 . Modify httpd.conf

to load the PHP module. If there is the following code in httpd.conf, just remove the preceding #. If not, add

LoadModule php7_module modules/libphp7.so

and add the following code at the bottom. Enable Apache to parse php files

<IfModule mod_php7.c>	AddType application/x-httpd-php .php</IfModule>

找到如下代码，在index.html后面加入index.php

<IfModule dir_module>    DirectoryIndex index.html</IfModule>

重启Apache

service httpd restart

 

    4. 测试PHP是否成功安装

创建/usr/local/server/apache/htdocs/index.php

vim /usr/local/server/apache/htdocs/index.php

在index.php中编写以下代码

<?php

   phpinfo();?>

如果出现以下页面则安装成功

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