How to specify a validation rule in Yii2 that will be greater or less than a certain number or value?

Question

I have a model with a validation rule, for example:

[['x'], 'integer'], [['x'], 'unique'], 

Now, how to add a rule like:

x <100
or something like x> = 100

Answer 1

It should be:

 ['x', 'compare', 'compareValue' => 100, 'operator' => '<'], 

and

 ['x', 'compare', 'compareValue' => 100, 'operator' => '>='], 

respectively.

More details in official documents .