JSON用于jqPlot [英] JSON for jqPlot

问题描述

我想用jqPlot usinge数据从服务器端的JSON的到来，就像这个例子说明：<一href=\"http://www.jqplot.com/tests/data-renderers.php\">http://www.jqplot.com/tests/data-renderers.php

I would like to use jqPlot usinge data from server side coming in JSON, like described in this example: http://www.jqplot.com/tests/data-renderers.php

我的code是几乎相同的，如例如：

My code is nearly the same like the example:

function myGraph(jsonurl) {

  var ajaxDataRenderer = function(url, plot, options) {
    var ret = null;
    $.ajax({
      // have to use synchronous here, else the function
      // will return before the data is fetched
      async: false,
      url: url,
      dataType:"json",
      success: function(data) {
        ret=data;
        console.warn(data);
      }
    });
    return ret;
  };



var plot1 = $.jqplot('chartdiv', jsonurl, {
      title: 'myTitle',
      dataRenderer: ajaxDataRenderer,
      dataRendererOptions: {  unusedOptionalUrl: jsonurl    },
      series: [{
          label: 'myLabel',
          neighborThreshold: -1
      }],
      axes: {
          xaxis: {
              renderer: $.jqplot.DateAxisRenderer,
            //  min:'August 1, 2010 16:00:00',
              tickInterval: '2 months',
              tickOptions:{formatString:'%Y-%m-%d.%H:%M:%S'}
          },
          yaxis: {
              tickOptions:{formatString:'$%.2f'}
          }
      },
  });

在服务器端我使用PHP（和Yii的）。该网页返回一个数组，这是EN coded到JSON使用 CJSON :: EN code（$ resultArray）; （这Yii的函数传递到低谷PHP的JSON恩code函数）。
从PHP脚本的结果lookes这样的：

On server side i'm using PHP (and Yii). The webpage returns an array, which is encoded to JSON by using CJSON::encode($resultArray); (this Yii function passed trough to the PHP JSON encode function). The Results from the PHP script lookes like that:

{"2011-04-25 14:46:40":2,"2011-04-26 14:46:40":3,"2011-04-27 14:46:40":5}

在客户端的Ajax请求解决这样的事情（输出 console.info（）; ）

Object { 2011-04-25 14:46:40=2,  2011-04-26 14:46:40=3, ...}

也许，jqPlot期望的格式如下：

Probably, jqPlot expect the following format:

[[["2011-04-25 14:46:40":0],["2011-04-26 14:46:40",3],["2011-04-27 14:46:40",0]]]

所有时间我得到的错误未捕获的异常：[对象的对象]
哪里不对？
有没有办法将对象转换为典型的数组形式？

All the time i get the error uncaught exception: [object Object] What is wrong? Is there a way to convert the object for to the typical array form?

感谢您

推荐答案

我有这样的事情。我有2个阵列的值，标签应。你从数组如下构建字符串。

I have something like this . I had 2 arrays for values,labels .You should construct string as below from arrays .

        $size = count($labels);

        for ($i = 0; $i < $size; $i++) {
            $result = $result . "['" . $labels[$i] . "'," . $values[$i] . "]";
            if($i != $size -1 ){
                $result = $result . ",";
            }
        }

或者如果你没有2个数组，只是有这个字符串{2011-04-25 14点46分40秒：2，2011-04-26 14点46分40秒：3，2011-04 -27 14时46分40秒：5}您可以替换用{[，}用]，并与]，[。一个肮脏的，但快速的解决方案。

OR if you dont have 2 arrays and just have this string {"2011-04-25 14:46:40":2,"2011-04-26 14:46:40":3,"2011-04-27 14:46:40":5} you can replace { with [ , } with ] and , with ],[ . A dirty but quick solution .

以上code后，您可能需要追加[和]两边和返回值。

After above code you might need to append '[' and ']' on both sides and return value.

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