Eloquent::whereNull PHP Method

Add a "where null" clause to the query.

public static whereNull ( string $column, string $boolean = 'and', boolean $not = false )
$column	string
$boolean	string
$not	boolean

        public static function whereNull($column, $boolean = 'and', $not = false)
        {
            return \Illuminate\Database\Query\Builder::whereNull($column, $boolean, $not);
        }

Eloquent::whereNull PHP Method

whereNull() public static method