PHP is a widely used, general-purpose scripting language that was originally designed for web development to produce dynamic web pages. For this purpose PHP code is embedded into the HTML source document and interpreted by a web server with a PHP processor module, which generates the web page document.

Hello world example

This is the "Hello world !" source code basic example.

<? echo "Hello World !" ?>

Save it with in /var/www/hello.php file then run it opening your browser on board IP using this URL:

http://<board_ip_address>/hello.php

Installation

PHP and Lighttp web server are already installed by default on the bootable Debian Linux microSD. If it is not installed on your board just type:

debarm:~# apt-get update
debarm:~# apt-get install php

See the phpinfo() output generated by the default PHP installation.