PHP

This is a quick introduction to PHP, which will be expanded on (eventually).

What is PHP?

PHP Hyper-text Pre-Processor. Allows web developers to write dynamically generated pages quickly. With synergy!

Basic PHP

• cd to your ~/public_html folder on Redbrick.

cd ~/public_html

• Create a file called “hello.php” using a text editor.

nano hello.php

• Paste (or manually type, if you're a newb) this PHP code into the fine

#!/usr/local/bin/php
<?php
   echo “Hello World!”;
?>

• Save and exit (CTRL + O, CTRL + X)

• Set correct permissions for the php file (this must be done for every .php file you want to use).

chmod 700 hello.php

• Visit www.redbrick.dcu.ie/~username/hello.php to view your script's output.

• It should display “Hello World!” in plain text within your browser.