价值回归为未定义 [英] Value is coming back as Undefined

问题描述

我正在使用jquery数据表在表上显示结果，然后将ID作为URL参数传递，我们可以向用户显示特定记录的详细信息。

所以但是，我被要求传递一个名为user的第二个url参数，这就是问题。

当我运行代码时，它不再显示详细信息页。

在使用firebug查看代码时，我发现错误说： / p>

john is undefined 。

john.doe该值显示在url上，看起来更像这样：

  http://mylink.com/viewDetails.php?ID = 1235& userName = john.doe 
  

任何想法我做错了什么？

  return< a target ='tab'data-tab-name ='＃RequestDetails'data-tab-index ='2'href = 'viewDetails.php？rID =
 + oObj.aData [ID] +& userName =+<？php ec ho $ user; ？> +'>+ oObj.aData [ID] +< / a>; 
  

解决方案

您的代码在被PHP解析后看起来像这样：

< a target ='tab'data-tab-name ='＃RequestDetails'data-tab-index ='2'href = 'viewDetails.php？rID =+ oObj.aData [ID] +& userName =+ john +'> + oObj.aData [ID] +< / a>

这意味着它正在寻找一个名为 john ，您可以看到它是未定义的。

应该是这样的：

< a target ='tab'data-tab-name ='＃RequestDetails'data-tab-index ='2'href ='viewDetails.php？rID =+ oObj .aData [ID] +& userName =<？php echo $ user？>'> + oObj.aData [ID] +< / a>

I am using jquery datatables to display results on a table and then passing ID as URL parameter, we able to display details of a particular record to user.

So far, this works fine.

However, I have been asked to pass a second url parameter called user and this is presenting problems.

When I run the code, it is no longer displaying details page.

Upon reviewing the code using firebug, I found an error that says:

john is undefined.

john.doe is the value being displayed on the url that looks more like this:

http://mylink.com/viewDetails.php?ID=1235&userName=john.doe

Any ideas what I am doing wrong?

return "<a target='tab' data-tab-name='#RequestDetails' data-tab-index='2' href='viewDetails.php?rID="
       + oObj.aData["ID"] + "&userName=" + <?php echo $user; ?> + "'> " + oObj.aData["ID"] + " </a>";

解决方案

Your code looks like this after being parsed by PHP:

<a target='tab' data-tab-name='#RequestDetails' data-tab-index='2' href='viewDetails.php?rID=" + oObj.aData["ID"] + "&userName=" + john + "'> " + oObj.aData["ID"] + " </a>

That means it's looking for a variable called john, which as you can see is undefined.

It should be this:

<a target='tab' data-tab-name='#RequestDetails' data-tab-index='2' href='viewDetails.php?rID=" + oObj.aData["ID"] + "&userName=<?php echo $user?>'> " + oObj.aData["ID"] + " </a>

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