Strange Language Construct

Yii 1.1 General Discussion
1

This isn’t related specifically to Yii but I hope you’ll help me anyway.

In the Yii development cookbook I found a strange php language construct:


public function remove()

{

$this->getOwner()->{$this->flagField} = 1;

return $this->getOwner();

}

I don’t understand this: $this->getOwner()->{$this->flagField} = 1;

Can somebody explain me this?

Update: the flagField variable is defined as:


public $flagField = 'is_deleted';

Does it mean that the line in question resolves to this:


$this->getOwner()->is_deleted=1;

?

But then I don’t understand why not simply write like I wrote it…

2

You correct explain this code.

They use flagField variable, that you can change it to you need.

It make this code more tunable.

3

Thanks!