图表仅使用jquery ajax php打印出第一个值
我试图将学生记录中的性别分布打印到图表仅使用jquery ajax php打印出第一个值,php,jquery,mysql,ajax,chart.js,Php,Jquery,Mysql,Ajax,Chart.js,我试图将学生记录中的性别分布打印到Chart.js，但它只将第一个数据打印到图表中 基本上，我所做的是尝试将studGender的所有实例计算为stud\u orgmember的总数，并按studGender（女性、男性）对其进行分组 我似乎无法让它工作这里是index.php的代码 <!DOCTYPE html> <html> <head> <title>Creating Dynamic Data Graph using PHP and Cha
Chart.jsstudGenderstud\u orgmemberstudGender（女性、男性）<!DOCTYPE html>
<html>
<head>
<title>Creating Dynamic Data Graph using PHP and Chart.js</title>
<style type="text/css">
BODY {
width: 550PX;
}
#chart-container {
width: 100%;
height: auto;
}
</style>
<script type="text/javascript" src="js1/jquery.min.js"></script>
<script type="text/javascript" src="js1/Chart.min.js"></script>
</head>
<body>
<div id="chart-container">
<canvas id="graphCanvas"></canvas>
</div>
<script>
$(document).ready(function () {
showGraph();
});
function showGraph()
{
{
$.post("data.php",
function (data)
{
console.log(data);
var name = [];
var marks = [];
for(var i in data){
name.push(data[i].studGender);
marks.push(data[i].total);
}
var chartdata = {
labels: name,
datasets: [
{
label: 'Gender Distribution from SOs',
backgroundColor: '#49e2ff',
borderColor: '#46d5f1',
hoverBackgroundColor: '#CCCCCC',
hoverBorderColor: '#666666',
data: marks
}
]
};
var graphTarget = $("#graphCanvas");
var barGraph = new Chart(graphTarget, {
type: 'bar',
data: chartdata
});
});
}
}
</script>
</body>
</html>`
<?php
header('Content-Type: application/json');
$conn = mysqli_connect("localhost","root","","soumis");
$sqlQuery = "SELECT studGender, COUNT(studGender) AS total FROM stud_orgmember GROUP BY studGender";
$result = mysqli_query($conn, $sqlQuery);
$data = array();
foreach ($result as $row) {
$data[] = $row;
}
mysqli_close($conn);
echo json_encode($data);
?>
使用PHP和Chart.js创建动态数据图
身体{
宽度：550PX；
}
#图表容器{
宽度：100%；
高度：自动；
}
$（文档）.ready（函数（）{
showGraph（）；
});
函数showGraph（）
{
{
$.post（“data.php”，
功能（数据）
{
控制台日志（数据）；
变量名称=[]；
var标记=[]；
用于（数据中的var i）{
name.push（数据[i].studGender）；
marks.push（数据[i].total）；
}
var图表数据={
标签：名称，
数据集：[
{
标签：“SOs中的性别分布”，
背景颜色：“#49e2ff”，
边框颜色：“#46d5f1”，
hoverBackgroundColor:“#CCCC”，
悬停边框颜色：“#666666”，
数据：马克
}
]
};
var graphTarget=$（“graphCanvas”）；
var条形图=新图表（图形目标{
类型：'bar'，
数据：图表数据
});
});
}
}
`
<!DOCTYPE html>
<html>
<head>
<title>Creating Dynamic Data Graph using PHP and Chart.js</title>
<style type="text/css">
BODY {
width: 550PX;
}
#chart-container {
width: 100%;
height: auto;
}
</style>
<script type="text/javascript" src="js1/jquery.min.js"></script>
<script type="text/javascript" src="js1/Chart.min.js"></script>
</head>
<body>
<div id="chart-container">
<canvas id="graphCanvas"></canvas>
</div>
<script>
$(document).ready(function () {
showGraph();
});
function showGraph()
{
{
$.post("data.php",
function (data)
{
console.log(data);
var name = [];
var marks = [];
for(var i in data){
name.push(data[i].studGender);
marks.push(data[i].total);
}
var chartdata = {
labels: name,
datasets: [
{
label: 'Gender Distribution from SOs',
backgroundColor: '#49e2ff',
borderColor: '#46d5f1',
hoverBackgroundColor: '#CCCCCC',
hoverBorderColor: '#666666',
data: marks
}
]
};
var graphTarget = $("#graphCanvas");
var barGraph = new Chart(graphTarget, {
type: 'bar',
data: chartdata
});
});
}
}
</script>
</body>
</html>`
<?php
header('Content-Type: application/json');
$conn = mysqli_connect("localhost","root","","soumis");
$sqlQuery = "SELECT studGender, COUNT(studGender) AS total FROM stud_orgmember GROUP BY studGender";
$result = mysqli_query($conn, $sqlQuery);
$data = array();
foreach ($result as $row) {
$data[] = $row;
}
mysqli_close($conn);
echo json_encode($data);
?>
我要大胆猜测一下，男性的价值是
27beginAtZero:trueoptions: {
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}]
}
}
@马可：这回答了你的问题吗？