Dear Larry,
p13 :
$obj = new SomeClass();
$obj->doThis();
p 53:
$app = Yii::createWebApplication($config);
$app->run();
I Searched on the Internet and found the explanation about Static methods, but maybe you could add a short explanation p13 about this ?
I found a clear answer here
http://stackoverflow.com/questions/3961456/difference-double-colon-and-arrow-operators-in-php
my 2 cents...
Thanks for reading.
Olivier.