PHP

PHP is a server side language, meaning you can't see the source code in your browser, because all of the stuff is done on the server. To start, get some web hosting (easy) or start your own server (not as easy), and create a .php file. Having a decent knowledge of HTML is highly recommended. If you've programmed in another web language such as ASP, or have knowledge of application languages like C++ or Java, learning PHP will be considerably easier.

Yeah… This is the ancient tradition of beginners starting out in any language. Here you go.

<?php
  echo "LOL HAI THER AMIDOINITRITE?";
  print("DICKS");
?>

Let's go over some rulez. (The word rules does not have a 'z' in it you miserable faggot).

All PHP code starts with <?php and ends with ?>. These are called delimiters. echo is a statement that basically prints out whatever is in the double quotes. It isn't a function. (printf() is though.) Since echo is a statement, much like require/include/exit/etc, using parenthesis around the value(s) to be echoed is optional. All statements in PHP that aren't if/else statements, while, for, do-while, for-each loops, functions, or classes end in semicolons.

We saw how echo can output text. But it can also output HTML code and JavaScript. Example here.

<?php
  echo "<b>LOL HAI THER</b> <i>AMIDOINITRITE?</i>";
?>

This'll output LOL HAI THER AMIDOINITRITE?, and if you look at the source of the PHP page, you'll see the HTML code in there.