Centos手动安装PHP和配置mydqli模块

第一步：手动安装php和php-fpm
sudo yum install php php-fpm 安装
sudo systemctl start php-fpm 启动
sudo systemctl enable php-fpm 开机启动
php -v
php-fpm -v
PHP 5.4.16 (cli) (built: Apr 1 2020 04:07:17)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
第二步：修改php默认端口9000为9100
cd /etc/php-fpm.d/
修改www.conf中listen = 127.0.0.1:9000为listen = 127.0.0.1:9100

第三步：修改nginx中php端口和配置网站
创建/root/php_web目录
配置权限sudo chown -R nginx:nginx /root/php_web（可选）
修改配置文件/usr/local/nginx/conf/nginx.conf
   server {
       listen 81;
       server_name webserver;

       root /root/php_web;
       index index.php index.html index.htm;

       location / {
           try_files $uri $uri/ =404;
       }

       location ~ \.php$ {
           fastcgi_pass 127.0.0.1:9100;
           fastcgi_index index.php;
           fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
           include fastcgi_params;
       }
   }

第四步：给php安装mysqli扩展
# 安装PHP和PHP开发包
sudo yum install php php-devel
# 安装mysqli扩展
sudo yum install php-mysqli

修改/etc/php.ini在文件最末尾增加一行extension = mysqli.so支持mysqli

第五步：重启php和重载nginx
sudo systemctl restart php-fpm
/usr/local/nginx/sbin/nginx -s reload 重载
/usr/local/nginx/sbin/nginx -s stop 停止（可选）
/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf 启动（可选）

第六步：检测是否支持mysqli
创建index.php
<?php
phpinfo();
?>
访问http://122.51.240.94:81/ ctrl+f搜索mysqli查看是否搜索到
---------------------------------------------------------------------------
简化命令
#安装
yum install php php-fpm php-devel php-mysqli
#修改php端口为9100
vi /etc/php-fpm.d/www.conf
#配置81端口网站和php端口9100
vi /usr/local/nginx/conf/nginx.conf
#php在文件最末尾增加一行extension = mysqli.so支持mysqli扩展
vi /etc/php.ini
#重载及开机启动
systemctl restart php-fpm
/usr/local/nginx/sbin/nginx -s reload
systemctl enable php-fpm

#配置文件
修改配置文件/usr/local/nginx/conf/nginx.conf
   server {
       listen 81;
       server_name webserver;

       root /root/php_web;
       index index.php index.html index.htm;

       location / {
           try_files $uri $uri/ =404;
       }

       location ~ \.php$ {
           fastcgi_pass 127.0.0.1:9100;
           fastcgi_index index.php;
           fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
           include fastcgi_params;
       }
   }