ubuntu安装php5并搭建web服务器

ubuntu16.04默认添加的是php7

要安装php5就要添加ubuntu14的ppa

操作如下：

使用ppa添加源：

sudo apt-get install python-software-properties

sudo add-apt-repository ppa:ondrej/php

安装php5.6

sudo apt-get update
sudo apt-get install php5.6

安装扩展
sudo apt-get install php5.6-gd
sudo apt-get install php5.6-mysql
安装Apache2
sudo apt install apache2
sudo apt-get install libapache2-mod-php5.6
安装Mysql
sudo apt install mysql-server php5.6-mysql
sudo apt-get install mysql-client
安装phpmyadmin
sudo apt-get install phpmyadmin
sudo apt-get install php5.6-mbstring
sudo apt-get install php5.6-gettext
sudo ln -s /usr/share/phpmyadmin /var/www/html/phpmyadmin
配置phpmyadmin

 vim /etc/php/5.6/apache2/php.ini
display_errors = On
extension=php_mbstring.dll (开启mbstring)
sudo dpkg-reconfigure phpmyadmin (重新配置phpmyadmin)