Php 数据不会绘制到我的图表上

我正在尝试使用chart.js库将数据输出到图表上。我已经成功地提取了所需的数据并创建了数据集，但由于某些原因，它不会呈现在图表上

我有三个文件：

teamData.js

$(document).ready(function(){

    $.ajax({
        url : "http://localhost/acredashAdv/teamData.php",
        type : "GET",
        success :function(data){
            console.log(data);

            var score_1 = [];
            var score_2 = [];

            for (var i in data) {
                 score_1.push(data[i].score_1);
                 score_2.push(data[i].score_2);
            }

            var chartata = {
                labels: [
                 "Strategic Development and Ownership", 
                 "Driving change through others", 
                 "Exec Disposition", 
                 "Commercial Acumen", 
                 "Develops High Performance Teams", 
                 "Innovation and risk taking", 
                 "Global Leadership", 
                 "Industry Leader"
                 ],

                datasets : [
                    {
                          label: "user 1",
                          backgroundColor: "rgba(0,0,0,0)",
                          borderColor: "#B71C1C",
                          data: score_1,
                    },
                    {
                          label: "user 2",
                          backgroundColor: "rgba(0,0,0,0)",
                          borderColor: "#B71C1C",
                          data: score_2
                    },                                                                                              

                ]
            };

            var ctx = $("#mycanvas");

            var LineGraph = new Chart(ctx, {
                type: 'radar',
                data: chartata,
                animationEasing: 'linear'
            }); 
        },
        error :function(data){

        },
    });

});

teamData.php

<?php
include 'config.php';

$query = sprintf("SELECT member_id, firstName, lastName, score_1, score_2, score_3, score_4, score_5, score_6, score_7, score_8 FROM members");

$result = $conn->query($query);

$data = array();
foreach ($result as $row) {
  $data[] = $row;
}

$result->close();
$conn->close();

print json_encode($data);

?>

但是，除非我搞混了，否则它不会提取数据。。。我最终得到了一张空的图表

---

可能是Chart.js的版本，下面是您正在运行的代码：

使用此版本的Chart.js

尝试采纳PabloMartinez的建议，在打印行之前向PHP文件添加标题：

header('Content-type: application/json');
print json_encode($data);

---

通常，这些东西需要相同数量的数据来绘制和标记，您在控制台中有8个标签，数据中只有3个值3个用户。log datahey man感谢您的回复，我最初有8组数据，但为了节省空间，我减少了它，但它只是做了同样的事情。这真的很棘手…奇怪的是，如果我使用member_id或score_1作为标签，会产生大量逗号，比如，，，，，，，，，，，，，，，，，，，，，尝试放置标题“Content-type:application/json”；在php中，如果不是，则返回文本而不是json@PabloMartinez其中是标题“Content-type:application/json”；你要走了吗？对不起？

[{"member_id":"144","firstName":"Dan","lastName":"Barrett","score_1":"4","score_2":"2","score_3":"3","score_4":"5","score_5":"1","score_6":"3","score_7":"5","score_8":"4"},{"member_id":"145","firstName":"Jon","lastName":"Smith","score_1":"3","score_2":"4","score_3":"1","score_4":"2","score_5":"1","score_6":"2","score_7":"3","score_8":"4"},{"member_id":"146","firstName":"Dan","lastName":"Barrett","score_1":"1","score_2":"2","score_3":"1","score_4":"1","score_5":"4","score_6":"1","score_7":"4","score_8":"3"}]

header('Content-type: application/json');
print json_encode($data);