Download - File Dropper

11
Introduction
Coding Conventions
I plan on using the best practices that I know, including the ones
laid out in the WordPress Codex.3 This means that I will do my best
to write correct markup, name variables properly, create constants
when necessary, and include thorough, clear comments within all
of my programming.
I will also take on the following convention for printing code as
used in previous WordPress books published by Rockable. This
means that all lines of code will appear against a light grey background in a fixed-width typeface, like this:
<?php echo 'Hello World!'; ?>
Sometimes a line of code is too long to fit entirely on one line. In
this case, the grey background of the following line (or lines, for a
really long line) will be slightly indented. In most cases, a space
character is permissable between the last character on the initial line and the first character on the next line. If a space is not
allowed, there will be a continuation marker ( ▶ ) to remind you. For
example, here a space is permitted between “dog.' ” and “?>”:
<?php echo 'The quick brown fox jumped over the lazy dog.'
?>
But in the following code, there is no space intended after the
underscore. Therefore “pingback_url” is correct:
<link rel="pingback" href="<?php bloginfo('pingback_
▶
url'); ?>" />
Note: when copy-pasting the code out of the book, you’ll need to
take out these arrows and accompanying space. With this in mind,
let’s take a look at the plan of action for the rest of this book.
3 http://codex.wordpress.org/WordPress_Coding_Standards