Query with 'like' and 'not'

Yii 2.0 General Discussions
1

My where clause is not working. How can I use not and like?
->where([‘not’, [‘fav_id’ => null]], [‘and’, [‘like’, ‘title’, $search_text]])

2 
 ->where(['and',
    ['not', ['fav_id' => null]],
    ['like', 'title', $search_text]
])

would result in SQL:

WHERE (NOT fav_id IS NULL  AND  title LIKE $search_text )
1 Like
3

Thank you.