ubuntu如何安装php5.6

apt install python-software-properties -y

 apt install software-properties-common python-software-properties

LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php

apt update

apt upgrade -y

apt install php5.6 php5.6-fpm php5.6-mysql php5.6-gd php5.6-mbstring php5.6-curl php5.6-soap php5.6-redis php5.6-xml php5.6-apcu php5.6-mcrypt -y

vim /etc/nginx/fastcgi_params 
    # 在文档最后添加一下代码：
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

   <?php phpinfo();

vim /etc/nginx/conf.d/default.conf 
    # 清空文档，把以下内容复制到文档中：
    server {
        listen  80;
        # server_name  localhost;
        root  /www/test;
        index  index.php index.html index.htm;
        location ~ \.php$ {
            fastcgi_pass  unix:/var/run/php/php5.6-fpm.sock;
            include  fastcgi_params;
        }
            location ~ /\.ht {
            deny  all;
        }
    }
    # 改完之后保存

 vim /etc/nginx/nginx.conf

 /etc/init.d/nginx restart