===== General =====

   * Simple is better than complex (see [[http://www.python.org/dev/peps/pep-0020/|"The Zen of Python"]])
   * Use [[http://www.phpdoc.org/|phpdoc syntax]] for every function you add.
   * Limit lines to 78 characters
   * Use the identical operator whenever possible (faster).
   * Do not use [[http://en.wikipedia.org/wiki/Magic_number_%28programming%29#Unnamed_numerical_constant|magic numbers]]! If you spot any in the core, remove them or file a bug report!

===== Indentation =====
   * Use the [[http://en.wikipedia.org/wiki/Indent_style#Allman_style_.28bsd_in_Emacs.29|Allman style]]
   * Use tabs for indentation
   * Do not indent functions with one tab (indent methods with one tab).
   * Do not align assignment operators for multiple lines.

===== Example function =====

<code php>
/**
 * Function description.
 * 
 * @param string $foo A variable.
 * @return string
 */
function fooBar($foo)
{
    if ($foo === 'bar')
    {
        $out[] = $foo;
    }
    else
    {
        $out[] = 'baz';
    }
    
    return implode('', $out);
}

</code>