use php in ubuntu code example

Example 1: ubuntu install php

apt-get install php-pear php-fpm php-dev php-zip php-curl php-xmlrpc php-gd php-mysql php-mbstring php-xml libapache2-mod-php

Example 2: ubuntu install php

# Update packages lists
sudo apt update

# Install PPA
sudo add-apt-repository ppa:ondrej/php

## If you want the latest
sudo apt install php
## else sepcify version number as below
sudo apt install php7.3

# Install Extensions (add php version number for specific version)
sudo apt-get install php7.3-fpm php7.3 php7.3-cli php7.3-mysql php7.3-gd php7.3-imagick php7.3-recode php7.3-tidy php7.3-xmlrpc php7.3-common php7.3-curl php7.3-mbstring php7.3-xml php7.3-bcmath php7.3-bz2 php7.3-intl php7.3-json php7.3-readline php7.3-zip

# Install the latest version of PHP and Apache wrapper
sudo apt install php libapache2-mod-php
## else if you installed a specific version of PHP
sudo apt install php libapache2-mod-php7.3

# Enable PHP (can type sudo a2enmod php, then push tab to see listed versions)
sudo a2enmod php7.3

# Restart Apache Service
sudo service apache2 restart