Update your repo list with below command
$ sudo apt-get update
-- > Install Apache 2.4.18
$ sudo apt-get install apache2
-- > Install PHP 7.0
$ sudo apt-get install php7.0 libapache2-mod-php7.0 php7.0-mysql php7.0-curl php7.0-json
-- > Install MySQL 5.7
$ sudo apt-get install mysql-server
Create info.php file at /var/www/html/info.php with your favorite editor and paste below mentioned code in that file and check php7 with apache2 is running.
<?php
phpinfo();
?>
-- > Once finish with info.php open http://localhost/info.php or http://127.0.0.1/info.php then you can able to see page like below.
Its done Enjoy !!!! :)