相关的环境搭建有很多介绍。参考了网上别人的经验，可以较快的搭建起来。这里记录了我个人的环境搭建过程。
这次的环境搭建，都是通过yum进行安装的，而没有通过编译源码进行安装。

先来看目标版本，这是安装后的信息：

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# uname -a
Linux localhostww.localdomain 4.1.12-112.14.13.el7uek.x86_64 #2 SMP Thu Jan 18 11:38:29 PST 2018 x86_64 x86_64 x86_64 GNU/Linux
# httpd -version
Server version: Apache/2.4.6 ()
Server built: Apr 11 2018 05:56:48
# mysqld --version
/usr/sbin/mysqld Ver 8.0.11 for Linux on x86_64 (MySQL Community Server - GPL)
# php -v
PHP 7.1.19 (cli) (built: Jun 25 2018 13:58:17) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies

1. 安装Apahce (httpd)

1.1 安装

这个很简单：

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# yum install httpd

1.2 小插曲

然而，遇到了个小问题：

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Loaded plugins: langpacks, ulninfo
Existing lock /var/run/yum.pid: another copy is running as pid 2657.
Another app is currently holding the yum lock; waiting for it to exit...

这是个常见的问题，原因是yum在尝试更新。
我们来查一下进程以及父进程信息：

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# ps -ef | grep yum
root 2657 1571 0 07:23 ? 00:00:00 /usr/bin/python /usr/share/PackageKit/helpers/yum/yumBackend.py get-updates none
# ps -ef | grep 1571
root 1571 1 0 07:21 ? 00:00:01 /usr/libexec/packagekitd
root 2657 1571 0 07:23 ? 00:00:00 /usr/bin/python /usr/share/PackageKit/helpers/yum/yumBackend.py get-updates none

把父进程1571杀掉，然后再查，此时已经没有相关进程了。

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# kill -9 1571
# ps -ef | grep yum | grep -v grep
#

1.3 再次安装

再通过yum安装httpd，一切OK。

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# yum install httpd

1.4 启动httpd, 测试

默认的httpd是80端口，先查看一下；很好，这个端口没有被监听。

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# netstat -an | grep 80

启动 httpd

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# systemctl start httpd.service

再看一下监听端口，有了：

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# netstat -an | grep 80
tcp6 0 0 :::80 :::*

也可以通过浏览器来查看apache默认的测试界面：

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http://localhost:80

2. 安装PHP

2.1 检查并删除现有的PHP版本

参考连接

最终，执行如下命令查看是否已经完全删除：

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# php -v
bash: php: command not found...
# rpm -qa|grep php <-- 没有返回就对了

2.2 下载rpm并安装

我是通过yum安装的，所以可以掠过此处.
参考官方连接
根据上述描述，需要下载php 7.1.9的rpm，可以从这里下载。

2.3 更新yum的repo，并且安装PHP

仍旧参考官方连接。
更新yum的repo：

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# cd /etc/yum.repos.d
# mv public-yum-ol7.repo public-yum-ol7.repo.bak
# wget http://yum.oracle.com/public-yum-ol7.repo

在repo中设置要安装的PHP版本：

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# yum install yum-utils
# yum-config-manager --enable ol7_developer_php71

安装

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# yum install php

2.4 测试安装

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# which php
/usr/bin/php
# php -v
PHP 7.1.19 (cli) (built: Jun 25 2018 13:58:17) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies

2.5 安装其他相关组件

这些在后续开发中会用到，一起安装了吧

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yum install php-mysql php-gd libjpeg* php-imap php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-bcmath php-mhash libmcrypt

遇到一个不能成功安装的，暂时略过，不影响环境搭建

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# yum install php-mcrypt
Loaded plugins: langpacks, ulninfo
Resolving Dependencies
--> Running transaction check
---> Package php-mcrypt.x86_64 0:5.4.16-7.el7 will be installed
--> Processing Dependency: php(zend-abi) = 20100525-64 for package: php-mcrypt-5.4.16-7.el7.x86_64
--> Processing Dependency: php(api) = 20100412-64 for package: php-mcrypt-5.4.16-7.el7.x86_64
--> Finished Dependency Resolution
Error: Package: php-mcrypt-5.4.16-7.el7.x86_64 (epel)
Requires: php(api) = 20100412-64
Installed: php-common-7.1.19-1.0.1.el7.x86_64 (@ol7_developer_php71)
php(api) = 20160303-64

检查一下我们的安装：

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# yum list installed | grep php
gd-last.x86_64 2.1.1-2.el7 @ol7_developer_php71
php.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-bcmath.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-cli.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-common.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-gd.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-imap.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-ldap.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-mbstring.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-mysqlnd.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-odbc.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-pdo.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-pear.noarch 1:1.9.4-21.el7 @ol7_latest
php-process.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-xml.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71
php-xmlrpc.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71

2.6 测试PHP是否工作

在"/etc/www/html"下创建这样一个测试文件：
（不知什么原因，简单的插入php代码，会导致我后面的章节统统给删掉；在经历了2次这样的事情后，还是简单的在代码中加入几个##吧）。

#touch /etc/www/html/index.php
with content
##<##?php
phpinfo();
##?##>

在浏览器里访问"http://localhost:80/index.php"，结果不对。
需要重新启动httpd，之后就OK了。

# syystemctl start httpd.service

3. 安装mysql

参考链接

3.1 添加mysql的repo

从这里下载mysql的repo，我下载的是"mysql80-community-release-el7-1.noarch.rpm"
然后添加到本地repo里：

# yum localinstall mysql80-community-release-el7-1.noarch.rpm
# yum repolist enabled | grep"mysql.*-community.*"
mysql-connectors-community/x86_64 MySQLConnectorsCommunity                 51
mysql-tools-community/x86_64     MySQL ToolsCommunity                      63
mysql80-community/x86_64         MySQL 8.0 CommunityServer                 17

也可以直接查看文件/etc/yum.repos.d/mysql-community.repo：

[mysql80-community]
name=MySQL 8.0 Community Server
baseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

也可以通过下面的命令来需改需要安装的版本，我需要安装8.0，所以就没有进行这个操作。

# sudo yum-config-manager --disable mysql57-community
# sudo yum-config-manager --enable mysql80-community

3.2 安装mysql

# sudo yum install mysql-community-server
# yum list installed | grep mysql
mysql-community-client.x86_64 8.0.11-1.el7 @mysql80-community
mysql-community-common.x86_64 8.0.11-1.el7 @mysql80-community
mysql-community-libs.x86_64 8.0.11-1.el7 @mysql80-community
mysql-community-libs-compat.x86_64 5.7.16-1.el7 @Server-Mysql/7.3
mysql-community-server.x86_64 8.0.11-1.el7 @mysql80-community
mysql80-community-release.noarch el7-1 installed
php-mysqlnd.x86_64 7.1.19-1.0.1.el7 @ol7_developer_php71

3.3 启动

# systemctl start mysqld.service

3.4 获取并修改临时密码

密码存在log文件里，获取临时密码后，修改密码

# grep 'temporary password' /var/log/mysqld.log
2018-06-28T07:40:46.220757Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: fh!dh_o)z8fD

# mysql -uroot -p'fh!dh_o)z8fD'

mysql> ALTER USER 'root'@'localhost'IDENTIFIED BY 'HHhh0011_2233';

4. 总体测试 (Aphache/PHP/Mysql)

4.1 创建数据库

mysql> create database root_db1;
mysql> use root_db1;
mysql> create table MyGuests(id int auto_increment, firstname varchar(20), lastname varchar(20), primary key (id));
mysql> desc MyGuests;
+-----------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------+-------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| firstname | varchar(20) | YES | | NULL | |
| lastname | varchar(20) | YES | | NULL | |
+-----------+-------------+------+-----+---------+----------------+
3 rows in set (0.00 sec)
mysql> insert into MyGuests (firstname, lastname) values( 'aa', 'bb');
mysql> insert into MyGuests (firstname, lastname) values( 'xx', 'yy');
mysql> select * from MyGuests;
+----+-----------+----------+
| id | firstname | lastname |
+----+-----------+----------+
| 1 | aa | bb |
| 2 | xx | yy |
+----+-----------+----------+
2 rows in set (0.01 sec)

4.2 创建php代码

##<span style="font-size:14px;"##>
##<##?php
$servername = "127.0.0.1";
$port=3306;
$username = "root";
$password = "HHhh0011_2233";
$dbname = "root_db1";
$socket="mysqli.default_socket";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname,$port,$socket);
// Check connection
if ($conn->connect_error) {
die("Connection failed 1: " . $conn->connect_error);
}
$sql = "SELECT id, firstname, lastname FROM MyGuests";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "
";
}
} else {
echo "0 results";
}
$conn->close();
##?##>

4.3 测试

直接测试PHP程序，报错。

#php /var/www/testMysql01.php
return err:
PHP Warning: mysqli::__construct(): The server requested authentication method unknown to the client [caching_sha2_password] in /var/www/html/testMysql01.php on line 10
PHP Warning: mysqli::__construct(): (HY000/2054): The server requested authentication method unknown to the client in /var/www/html/testMysql01.php on line 10
Connection failed 1: The server requested authentication method unknown to the client

原因是 php 7.1的 mysqli 组件不支持 mysql 8的密码加密方式"caching_sha2_password"，需要修改为 "mysql_native_password"。

# mysql -uroot -pHHhh0011_2233
mysql> select user,plugin from mysql.user;
+------------------+-----------------------+
| user | plugin |
+------------------+-----------------------+
| mysql.infoschema | mysql_native_password |
| mysql.session | mysql_native_password |
| mysql.sys | mysql_native_password |
| root | caching_sha2_password|
+------------------+-----------------------+
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '0racle_Nis';
mysql> select user,plugin from mysql.user;
+------------------+-----------------------+
| user | plugin |
+------------------+-----------------------+
| mysql.infoschema | mysql_native_password |
| mysql.session | mysql_native_password |
| mysql.sys | mysql_native_password |
| root | mysql_native_password |
+------------------+-----------------------+
mysql> exit

再次测试，OK!

# php testMysql01.php
id: 1 - Name: aa bb
id: 2 - Name: xx yy

arm_zwinger

环境搭建：Apache:2.4/PHP:7.1/Mysql:8.0/OracleLinux:7

1. 安装Apahce (httpd)

1.1 安装

1.2 小插曲

1.3 再次安装

1.4 启动httpd, 测试

2. 安装PHP

2.1 检查并删除现有的PHP版本

2.2 下载rpm并安装

2.3 更新yum的repo，并且安装PHP

2.4 测试安装

2.5 安装其他相关组件

2.6 测试PHP是否工作

3. 安装mysql

3.1 添加mysql的repo

3.2 安装mysql

3.3 启动

3.4 获取并修改临时密码

4. 总体测试 (Aphache/PHP/Mysql)

4.1 创建数据库

4.2 创建php代码

4.3 测试