The Yii source code would be much more readable if there was a little more whitespace. Especially adding a space after each punctuation mark and assignment would be a huge benefit.
Compare
$a=$b;
$user=new User;
$arr=array(1,2,3,'a','b','c');
array('allow', // allow admin user to perform 'admin' and 'delete' actions
'actions'=>array('admin','delete'),
'users'=>array('admin'),
),
To
$a = $b;
$user = new User;
$arr = array(1, 2, 3, 'a' ,'b' ,'c');
array('allow', // allow admin user to perform 'admin' and 'delete' actions
'actions' => array('admin', 'delete'),
'users' => array('admin'),
),
Without going into a coding standards debate (please keep your squiggly brackets where you like 'em), I’d like to know opinions of other users.