1. 首先关闭防火墙

[root@svnhost html]# systemctl stop firewalld.service

2. 取消SELinux的安全设置，否则/var/log/httpd/error_log中会出现“permission denied"错误，不能解析PHP文件

#vi /etc/selinux/config

#SELINUX=enforcing #注释掉

#SELINUXTYPE=targeted #注释掉

SELINUX=disabled #增加

:wq! #保存退出

#setenforce 0 #使配置立即生效

3. 安装MySQL5.7

3.1 因为缺省没有匹配的MySQL YUM 库，所以先要添加yum库

[root@svnhost backup]# rpm -Uvh mysql57-community-release-el7-8.noarch.rpm

 mysql57-community-release-el7-8.noarch.rpm 在 http://dev.mysql.com/downloads/repo/yum/ 中下载

3.2 查看yum库是否已经添加

[root@svnhost backup]# yum repolist all |grep mysql
mysql-connectors-community/x86_64 MySQL Connectors Community      enabled:    21
mysql-connectors-community-source MySQL Connectors Community - So disabled
mysql-tools-community/x86_64      MySQL Tools Community           enabled:    33
mysql-tools-community-source      MySQL Tools Community - Source  disabled
mysql-tools-preview/x86_64        MySQL Tools Preview             disabled
mysql-tools-preview-source        MySQL Tools Preview - Source    disabled
mysql55-community/x86_64          MySQL 5.5 Community Server      disabled
mysql55-community-source          MySQL 5.5 Community Server - So disabled
mysql56-community/x86_64          MySQL 5.6 Community Server      disabled
mysql56-community-source          MySQL 5.6 Community Server - So disabled
mysql57-community/x86_64          MySQL 5.7 Community Server      enabled:    74
mysql57-community-source          MySQL 5.7 Community Server - So disabled

3.3 安装最新的MySQL5.7

root@svnhost backup]# yum install mysql-community-server

3.4 启动MySQL 服务

[root@svnhost system]# systemctl enable mysqld.service
[root@svnhost system]# systemctl start mysqld.service
[root@svnhost system]# systemctl stop mysqld.service

3.5 修改root密码

比较坑爹的是mysql在安装的时候会产生一个临时密码，可以通过下面命令看到：

# grep "temporary password" | /var/log/mysqld.log

然后使用这个密码登陆后修改成你需要的密码

[root@svnhost log]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.12

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> alter user 'root'@'localhost' identified by 'a3b4c5d6!!';                                  //只能使用这个命令修改密码
Query OK, 0 rows affected (0.18 sec)

mysql>quit;

4.安装PHP5.6.20

4.1 因为yum缺省安装的是PHP5.4，所以先要添加yum库

[root@svnhost ~]# rpm -Uvh https://mirror.webtatic.com/yum/el7/epel-release.rpm

[root@svnhost ~]# rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

4.2. 安装PHP5.6.20

[root@svnhost ~]# yum install php56w.x86_64 php56w-cli.x86_64 php56w-common.x86_64 php56w-gd.x86_64 php56w-ldap.x86_64 php56w-mbstring.x86_64 php56w-mcrypt.x86_64 php56w-mysql.x86_64 php56w-pdo.x86_64

[root@svnhost log]# yum install php-pear        //安装SVNMANAGER需要的包

[root@svnhost ~]# yum install php-mysqli        //安装svnmanage需要的包
 

4.3.配置PHP

vi /etc/php.ini #编辑

date.timezone = PRC #把前面的分号去掉，改为date.timezone = PRC

disable_functions = passthru,exec,system,chroot,scandir,chgrp,chown,shell_exec,proc_open,proc_get_status,ini_alter,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,stream_socket_server,escapeshellcmd,dll,popen,disk_free_space,checkdnsrr,checkdnsrr,getservbyname,getservbyport,disk_total_space,posix_ctermid,posix_get_last_error,posix_getcwd, posix_getegid,posix_geteuid,posix_getgid, posix_getgrgid,posix_getgrnam,posix_getgroups,posix_getlogin,posix_getpgid,posix_getpgrp,posix_getpid, posix_getppid,posix_getpwnam,posix_getpwuid, posix_getrlimit, posix_getsid,posix_getuid,posix_isatty, posix_kill,posix_mkfifo,posix_setegid,posix_seteuid,posix_setgid, posix_setpgid,posix_setsid,posix_setuid,posix_strerror,posix_times,posix_ttyname,posix_uname

#列出PHP可以禁用的函数，如果某些程序需要用到这个函数，可以删除，取消禁用。

expose_php = Off #禁止显示php版本的信息

short_open_tag = ON #支持php短标签，一定要打开，否则不能解析PHP文件

:wq! #保存退出

4.4 测试PHP安装是否成功

#systemctl restart httpd.service

#systemctl start mysqld.service

# vi /var/www/html/index.php

<?
phpinfo();
?>

从客户端访问http://192.168.44.47:8000, 显示PHP版本信息，说明PHP安装成功。

5. 重启防火墙

#systemctl start firewalld.service

因为8000端口之前己经打开，所以测试PHP访问依然成功。