Install LAMP

sudo apt-get install tasksel

sudo  tasksel

And select LAMP Server:

During the installation  you  will be  asked  to insert the  mysql root  password

Now check if php is working :

sudo vi /var/www/info.php

and add

<?php
phpinfo();
?>

save and exit

restart apache2 ,

sudo /etc/init.d/apache2 restart

Now open browser and type :

http://ip/info.php or http://localhost/info.php

Php is installed.

To full manage  your  lamp Server database, install  phpmyadmin

sudo  apt-get  install  phpmyadmin

To login  to phpmyadmin, open browser and type :

http://ip/phpmyadmin   or http://localhost/phpmyadmin