新購(gòu)入一臺(tái)阿里云服務(wù)器，系統(tǒng)版本是CentOS 7.4，以下是搭建PHP環(huán)境的步驟

一、部署yum源

1、打開(kāi)centos的yum文件夾

輸入命令cd /etc/yum.repos.d/

2、用wget下載repo文件

輸入命令wget http://mirrors.aliyun.com/repo/Centos-7.repo
如果wget命令不生效，說(shuō)明還沒(méi)有安裝wget工具，輸入yum -y install wget回車進(jìn)行安裝。
當(dāng)前目錄是/etc/yum.repos.d/，剛剛下載的Centos-7.repo也在這個(gè)目錄上

3、備份系統(tǒng)原來(lái)的repo文件

mv CentOS-Base.repo CentOS-Base.repo.bak

即是重命名 CentOS-Base.repo -> CentOS-Base.repo.bak

4、替換系統(tǒng)原理的repo文件

mv Centos-7.repo CentOS-Base.repo

即是重命名 Centos-7.repo -> CentOs-Base.repo

5、執(zhí)行yum源更新命令

yum clean all
yum makecache
yum update

但是阿里云的源有時(shí)候缺很多東西
可以繼續(xù)安裝其他源
安裝epel源

yum install epel-release 

安裝remi源

yum install -y http://rpms.famillecollet.com/enterprise/remi-release-7.rpm

然后進(jìn)入到/etc/yum.repos.d/目錄看一下源列表

yum repolist

二、yum源配好了下面就可以安裝軟件了

1、先隨便安裝個(gè)vim測(cè)試一下

yum install vim

下面開(kāi)始安裝PHP環(huán)境

2、安裝PHP

通過(guò)search搜索合適的PHP源

yum search php7

這時(shí)候會(huì)列出一堆帶php7的源，如果想更詳細(xì)可以選php72或者php73等版本，如果發(fā)現(xiàn)沒(méi)有從remi源里搜索
可以加上選擇什么源

yum --enablerepo=remi search <keyword>

可以通過(guò)yum info <包名>查看包的具體版本等信息
依次執(zhí)行安裝php

yum install php73
yum install php73-php-fpm

3、安裝nginx，發(fā)現(xiàn)源里面的nginx版本比較舊，通過(guò)以下方式安裝新的

wget  http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
rpm -ivh nginx-release-centos-7-0.el7.ngx.noarch.rpm
yum install nginx

4、接下來(lái)安裝mysql

首先centOS 7 自帶一個(gè)mariadb，需要卸載掉，否則會(huì)跟mysql沖突

rpm -qa | grep mariadb          //列出來(lái)服務(wù)器上安裝的mariadb包
rpm -e --nodeps mariadb-libs-5.5.56-2.el7.x86_64         //移除掉安裝的包（包名從剛才的列表里粘貼）

依然是和nginx類似的步驟獲取比較新的mysql 5.7版本

wget http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm
rpm -Uvh mysql57-community-release-el7-7.noarch.rpm
yum install mysql-community-server  //安裝服務(wù)端

mysql5.7之后的版本為了安全起見(jiàn)會(huì)隨機(jī)生成一個(gè)初始密碼放在/var/log/mysqld.log?
找到日志中的

> A temporary password is generated for root@localhost:

之類就是初始密碼。
修改mysql密碼
拿到初始密碼之后，登錄mysql修改密碼

mysql -u root -p

• 1: 修改密碼，必須有大小寫(xiě)，含數(shù)字特殊符號(hào)，長(zhǎng)度8位及以上
  > SET PASSWORD = 'your password';
• 2: 設(shè)置密碼不過(guò)期；
  > ALTER USER root@localhost PASSWORD EXPIRE NEVER;
• 3: 刷新權(quán)限表;
  > flush privileges;
  然后打開(kāi)nginx配置目錄
  新建pksfc.conf

server {
    listen       80;
    server_name  www.pksfc.com;
    root         /var/www/html;
    # Load configuration files for the default server block.
    include /etc/nginx/default.d/*.conf;

    location / {
        index  index.html;
                if (!-e $request_filename) {
                    rewrite  ^(.*)$  /404.html  last;
                    break;
                }
                error_page 404  /var/www/html/404.html;
    }
    location ~ \.php(.*)$ {
                fastcgi_pass 127.0.0.1:9000;
                #fastcgi_pass   unix:/var/run/php-fpm.sock;
                fastcgi_index  index.php;
                fastcgi_split_path_info  ^((?U).+\.php)(/?.+)$;
                fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
                fastcgi_param  PATH_INFO  $fastcgi_path_info;
                fastcgi_param  PATH_TRANSLATED  $document_root$fastcgi_path_info;
                include        fastcgi_params; 
                fastcgi_keep_conn on;
                fastcgi_connect_timeout      180;
                fastcgi_read_timeout         600;
                fastcgi_send_timeout         600;
                fastcgi_buffer_size          128k;
                fastcgi_buffers 8 64k;
                fastcgi_busy_buffers_size 256k;
                fastcgi_temp_file_write_size 256k;
        }
}
server {
    listen        443 ssl http2;
    server_name  www.pksfc.com;
    root /var/www/html;
    ssl                  on;
    ssl_certificate      /etc/nginx/1_www.pksfc.com_bundle.crt;
    ssl_certificate_key  /etc/nginx/2_www.pksfc.com.key;

    ssl_ciphers                     HIGH:!aNULL:!MD5;
    ssl_session_timeout             5m;
    ssl_protocols                   TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers       on;
    ssl_dhparam /etc/nginx/ssl/dhparam.pem;
    add_header Strict-Transport-Security "max-age=31536000; includeSubdomains; preload";
    add_header               X-Frame-Options SAMEORIGIN;
    add_header               X-Content-Type-Options nosniff;
    
    location / {
                index  index.html;
                if (!-e $request_filename) {
                        rewrite  ^(.*)$  /404.html  last;
                        break;
                }
                error_page 404  /var/www/html/404.html;
    }
    location ~ \.php(.*)$ {
                 fastcgi_pass 127.0.0.1:9000;
                #fastcgi_pass   unix:/var/run/php-fpm.sock;
                #fastcgi_index  index.php;
                fastcgi_split_path_info  ^((?U).+\.php)(/?.+)$;
                fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
                fastcgi_param  PATH_INFO  $fastcgi_path_info;
                fastcgi_param  PATH_TRANSLATED  $document_root$fastcgi_path_info;
                #include        fastcgi_params;

        fastcgi_index                index.php;
        fastcgi_connect_timeout      180;
        fastcgi_read_timeout         600;
        fastcgi_send_timeout         600;
        fastcgi_buffer_size          128k;
        fastcgi_buffers 8 64k;
        fastcgi_busy_buffers_size 256k;
        fastcgi_temp_file_write_size 256k;
        #fastcgi_param   SCRIPT_FILENAME $request_filename;
        include         fastcgi_params;
        fastcgi_keep_conn on;
        
        }
}

然后restart nginx之后就可以通過(guò)域名去訪問(wèn)了
如果想設(shè)置開(kāi)機(jī)自啟動(dòng)的話就執(zhí)行下面的語(yǔ)句

chkconfig nginx on
chkconfig php72-php-fpm on
chkconfig supervisord on

5、最后一步補(bǔ)充PHP擴(kuò)展，當(dāng)你發(fā)現(xiàn)缺少了某些擴(kuò)展的時(shí)候依然是通過(guò)以下命令

yum search php-mysql
yum install -y php73-php-mysqlnd.x86_64
service php73-php-fpm restart

去搜索安裝對(duì)應(yīng)擴(kuò)展并重啟php-fpm服務(wù)
其他的如redis，mongodb，等參考上面例子安裝即可
大功告成?。?！