Indent or code convention

Hello,

I read this article http://www.yiiframew...ics.convention.

However, I've got some questions.

1. What editor(or IDE) do yii framework developers usually use?

2. How do developers indent?

tab, 4 or 8 spaces?

3. Does Yii suggest not to use space between parenthesis and operators?

if($this->myVariable!==null)
{
}

It is a bit annoying because the generated codes by gii don't look good with my editor. I want to know how others codes with Yii.

Thank you.