Illuminate\Database\Query\Builder::whereDay PHP Method

    public function whereDay($column, $operator, $value = null, $boolean = 'and')
    {
        list($value, $operator) = $this->prepareValueAndOperator($value, $operator, func_num_args() == 2);
        return $this->addDateBasedWhere('Day', $column, $operator, $value, $boolean);
    }

 /**
  * Add a "where day" statement to the query.
  *
  * @param string $column
  * @param string $operator
  * @param int $value
  * @param string $boolean
  * @return \Illuminate\Database\Query\Builder|static 
  * @static 
  */
 public static function whereDay($column, $operator, $value, $boolean = 'and')
 {
     return \Illuminate\Database\Query\Builder::whereDay($column, $operator, $value, $boolean);
 }