Javascript 按月份显示数据
我想在饼图中显示员工数据。我能够使用jQuery和php制作饼图。但需求是页面中有12个按钮。名字从一月到十二月 当用户单击feb时,feb的饼图将显示给用户。当点击十二月时,十二月的饼图将显示给用户 在我的数据库中有一个Javascript 按月份显示数据,javascript,php,jquery,mysql,charts,Javascript,Php,Jquery,Mysql,Charts,我想在饼图中显示员工数据。我能够使用jQuery和php制作饼图。但需求是页面中有12个按钮。名字从一月到十二月 当用户单击feb时,feb的饼图将显示给用户。当点击十二月时,十二月的饼图将显示给用户 在我的数据库中有一个date列,其中存储的日期类似于2015-06-23 我无法得到SQL查询的逻辑,这是我的代码,但它需要改进 <html> <head> <!--Load the AJAX API--> <script type="
date
列,其中存储的日期类似于2015-06-23
我无法得到SQL查询的逻辑,这是我的代码,但它需要改进
<html>
<head>
<!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1.0', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
// Callback that creates and populates a data table,
// instantiates the pie chart, passes in the data and
// draws it.
function drawChart() {
// Create the data table.
var data = new google.visualization.DataTable();
data.addColumn('string', 'Topping');
data.addColumn('number', 'Slices');
data.addRows
([
<?php
$servername = "localhost";
$username = "root";
$dbname = "dat_database";
$password = "";
$conn = new mysqli($servername, $username, $password, $dbname);
$EMP_ID = 'MMUM254';
$sql = "SELECT typeof_task,hourspend from emp_dat_info where EMP_ID='" . $EMP_ID. "' ORDER BY date DESC LIMIT 10 " ;
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {
$a[] = "['" . $row["typeof_task"] . "', " . $row["hourspend"] . "]";
}
echo implode(', ', $a);
}
?>
]);
// Set chart options
var options = {'title':'How Much Hours You Spend',
'width':900,
'height':500};
// Instantiate and draw our chart, passing in some options.
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<!--Div that will hold the pie chart-->
<div id="chart_div"></div>
</body>
</html>
<?php echo date("Y"); ?>
//加载可视化API和piechart包。
load('visualization','1.0',{'packages':['corechart']});
//将回调设置为在加载Google Visualization API时运行。
setOnLoadCallback(drawChart);
//创建并填充数据表的回调,
//实例化饼图,传入数据并
//画它。
函数绘图图(){
//创建数据表。
var data=new google.visualization.DataTable();
data.addColumn('string','Topping');
data.addColumn('number','Slices');
data.addRows
([
您可以尝试在代码中使用month
子句来仅获取月份数据
$sql = "SELECT typeof_task,hourspend
FROM emp_dat_info
WHERE EMP_ID='" . $EMP_ID. "'
ORDER BY MONTH(date) DESC LIMIT 10 " ;
$result = $conn->query($sql);
如果要获取月份的全名,可以在查询中尝试MONTHNAME子句。在MONTHNAME子句中传递日期
$sql = "SELECT typeof_task,hourspend
FROM emp_dat_info
WHERE EMP_ID='" . $EMP_ID. "'
ORDER BY MONTHNAME(date) DESC LIMIT 10 " ;
$result = $conn->query($sql);
有关更多参考信息,请访问此链接:请尝试带日期的月份
$sql = "SELECT typeof_task,hourspend
FROM emp_dat_info
WHERE EMP_ID='" . $EMP_ID. "'
ORDER BY MONTH(date) DESC LIMIT 10 " ;
$result= $conn->query($sql);