[英]How to use json data with chart.js
I have some troubles to create a graph using chart.js and json data generated by me (php). 我使用我(php)生成的chart.js和json数据创建图形时遇到了一些麻烦。
I wrote this code : 我写了这段代码:
<script type="text/javascript" src="js/Chart.min.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<canvas id="myChart" width="740" height="200"></canvas>
<script type="text/javascript">
$.getJSON("json.php", function (result) {
var labels = [], data = [];
for (var i = 0; i < result.lenght ; i++){
labels.push(result[i].time);
data.push(result[i].mms);
console.log("result");
}
var ctx = document.getElementById("myChart").getContext("2d");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: labels,
datasets: [
{
label: "My First dataset",
fillColor: "rgba(220,220,220,0.2)",
strokeColor: "rgba(220,220,220,1)",
pointColor: "rgba(220,220,220,1)",
pointStrokeColor: "#fff",
pointHighlightFill: "#fff",
pointHighlightStroke: "rgba(220,220,220,1)",
data: data
}
]}
});
});
</script>
[
{
"time": "2016-09-01 00:00:07",
"mms": 1430
},
{
"time": "2016-09-01 00:05:08",
"mms": 2237
}
]
Json.php is file generated since a mysql query. Json.php是自mysql查询以来生成的文件。 If I replace labels by
如果我将标签替换为
labels: ["January", "February", "March", "April", "May", "June", "July"],
and data by 和数据
data: [65, 59, 80, 81, 56, 55, 40]
It works ! 有用 !
Can you help me please. 你能帮我吗。 I'm sure that I miss a little thing.
我确定我会错过一点事情。 Thanks
谢谢
for (var i = 0; i < result.lenght ; i++){
我认为您错误地将“长度”这个词...
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