How to install php5.6 on ubuntu

How to install php5.6 on ubuntu: first install the ppa source; then update the source through the "apt update" command; then install php5.6 through the install command; and finally configure Nginx to support PHP extensions.

The operating environment of this article: ubuntu 16.04 system, PHP5.6 version, DELL G3 computer

Ubuntu installation php5.6

1.

apt install python-software-properties -y

2. Install ppa source

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

3.

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

4. Update the source

apt update

5. Upgrade source

apt upgrade -y

6. Install php

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

7. Configure Nginx to support PHP extension

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;

8. Create site files and php test files

1 , mkdir -p /www/test

2. vim /www/test/info.php

Enter the content

   <?php phpinfo();

9. Modify the site configuration file

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

10. File access permissions

 vim /etc/nginx/nginx.conf

Modify a line [user nginx;] to [user www-data;]

11. Restart the Nginx service

 /etc/init.d/nginx restart

12. External network access: http://host IP/info.php

13. If the phpinfo content is displayed, it will be successful, otherwise it will fail.

Recommended learning: " PHP video tutorial》

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