显示查询结果的PDO错误：PDOStatement类的对象无法转换为字符串

So I'm trying AJAX for the first time and I'm stoked! I have a file called ajaxtest1.html and it just has a simple text box where a mileage is entered and then passed on to another file where it receives it, plonks it into the query and sends back the result. Here's ajaxtest1...So I'm trying AJAX for the first time and I'm s