PDO4You\PDO4You::selectNum PHP Method

    public static function selectNum($sql, $use = null)
    {
        return self::selectRecords($sql, 'num', $use);
    }

 public function testAllTypesSelects()
 {
     // SQL query
     $sql = 'SELECT * FROM users';
     // Executes the SQL and stores the result
     $result = test::select($sql);
     $this->assertEquals(1, self::getNumRows($result));
     // Executes the SQL and stores the result
     $result_num = test::selectNum($sql);
     $this->assertEquals(1, self::getNumRows($result_num));
     // Executes the SQL and stores the result
     $result_obj = test::selectObj($sql);
     $this->assertEquals(1, self::getNumRows($result_obj));
     // Executes the SQL and stores the result
     $result_all = test::selectAll($sql);
     $this->assertEquals(1, self::getNumRows($result_all));
 }