如何在chart.js中使用json數據

Question

我使用我（php）生成的chart.js和json數據創建圖形時遇到了一些麻煩。

我寫了這段代碼：

test.php的

<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>

json.php

[
{
"time": "2016-09-01 00:00:07",
"mms": 1430
},
{
"time": "2016-09-01 00:05:08",
"mms": 2237
}
]

Json.php是自mysql查詢以來生成的文件。 如果我將標簽替換為

labels: ["January", "February", "March", "April", "May", "June", "July"],

和數據

data: [65, 59, 80, 81, 56, 55, 40]

有用 ！

你能幫我嗎。 我確定我會錯過一點事情。 謝謝

Answer 1

for (var i = 0; i < result.lenght ; i++){

我認為您錯誤地將“長度”這個詞...