Coding Standards

Generally, PEAR standards.
Indentation: tabs, not spaces.
Wrap at 100 columns, unless the result would be confusing.
Variable names in lowercase (e.g., $section_number), multiple words separated with underscores, never camelCase or StudlyCaps.
Generally, give everything space to breathe. Whitespace is free.
Braces on a new line:
```
if ($x == $y)
{
  ...
}
```

Save for very terse (>~5 lines?) clauses, use an extra carriage return after an opening brace and before a closing brace:

while ($reference = $statement->fetch(PDO::FETCH_OBJ))
{

	$reference->catch_line = stripslashes($reference->catch_line);
	$reference->url = 'http://' . $_SERVER['SERVER_NAME']
		. ( ($_SERVER['SERVER_PORT'] == 80) ? '' : ':' . $_SERVER['SERVER_PORT'] )
		. '/' . $reference->section_number . '/';
	$references->$i = $reference;
	$i++;
	
}

Don't use the ternary operator (($size > 2) ? 'small' : 'large').
The results of conditionals should always go within braces, rather than expressed on a single line, e.g.:
```
if ($a == TRUE)
{
  echo 'true';
}
```
Spaces before conditionals (if ($a == TRUE), not if($a == TRUE))
Boolean terms in all caps (e.g., TRUE).
Comments as complete sentences, offset like such:
```
/*
 * Example comment here.
 */
```
Comments preceded with // indicate temporary, working comments, generally indicating problems.
If a bit of code is anything short of perfectly obvious, provide a comment explaining it.
Use echo, not print.
HTML 5, meaning self-terminating tags (e.g., <br />