Php GoogleChartAPI利用日期时间值
您好，我想在我的图表中显示日期时间，我在堆栈上进行了一些搜索，发现了类似的问题，如一个，但我不知道如何解决 我认为我应该更改的代码部分如下Php GoogleChartAPI利用日期时间值,php,mysql,json,google-api,google-visualization,Php,Mysql,Json,Google Api,Google Visualization,您好，我想在我的图表中显示日期时间，我在堆栈上进行了一些搜索，发现了类似的问题，如一个，但我不知道如何解决 我认为我应该更改的代码部分如下 <?php $DB_NAME = 'project'; $DB_HOST = 'localhost'; $DB_USER = 'root'; $DB_PASS = 'smogi'; include_once 'header.php'; $view = ($_GET['view']); $username2 =$_SESSION['user
<?php
$DB_NAME = 'project';
$DB_HOST = 'localhost';
$DB_USER = 'root';
$DB_PASS = 'smogi';
include_once 'header.php';
$view = ($_GET['view']);
$username2 =$_SESSION['username'];
$firstDate= $_POST['firstdatepicker'];
$lastDate= $_POST['lastdatepicker'];
$typeValue = ($_POST['typeValue']);
$startHour = ($_POST['startHour']);
$firstMin = ($_POST['firstMin']);
$lastHour = ($_POST['lastHour']);
$lastMin = ($_POST['lastMin']);
$firstTime = $startHour.':'.$firstMin.':00';
$lastTime = $lastHour.':'.$lastMin.':00';
$con = mysqli_connect('localhost','root','smogi','project');
/* Establish the database connection */
$mysqli = new mysqli($DB_HOST, $DB_USER, $DB_PASS, $DB_NAME);
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$sql="SELECT sensorValue,datetime FROM sensors WHERE username='$view' AND datetime BETWEEN '$firstDate''$firstTime' AND '$lastDate''$lastTime' AND typeValue='$typeValue' ORDER BY datetime DESC";
$result = mysqli_query($con,$sql);
$rows = array();
$table = array();
$table['cols'] = array(
// Labels for your chart, these represent the column titles.
array('label' => 'Date Time', 'type' => 'date'),
array('label' => 'Sensor Value', 'type' => 'number')
);
/* Extract the information from $result */
foreach($result as $r) {
$temp = array();
// The following line will be used to slice the chart
$temp[] = array('v' => 'Date('.date('Y',strtotime($r['datetime'])).','.(date('n',strtotime($r['datetime'])) - 1).','.date('d',strtotime($r['datetime'])).',0,0,0)');
// Values of the each slice
$temp[] = array('v' => (int) $r['sensorValue']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
// convert data into JSON format
$jsonTable = json_encode($table);
//echo $jsonTable;
?>
<html>
<head>
<!--Load the Ajax API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
function drawChart() {
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(<?=$jsonTable?>);
var options = {
hAxis: {title: 'Date & Time'},
vAxis: {title: 'Sensor Values'},
title: 'Sensor Data',
is3D: 'true',
width: 900,
height: 600
};
// Instantiate and draw our chart, passing in some options.
var chart = new google.visualization.ScatterChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<!--this is the div that will hold the pie chart-->
<div id="chart_div"></div>
</body>
</html>
//加载可视化API和piechart包。
load（'visualization'，'1'，{'packages'：['corechart']}）；
//将回调设置为在加载Google Visualization API时运行。
setOnLoadCallback（drawChart）；
函数绘图图（）{
//使用从服务器加载的JSON数据创建我们的数据表。
var data=new google.visualization.DataTable（）；
变量选项={
hAxis:{title:'Date&Time'}，
变量：{title:'传感器值'}，
标题：“传感器数据”，
is3D:'正确'，
宽度：900，
身高：600
};
//实例化并绘制图表，传入一些选项。
var chart=new google.visualization.ScatterChart（document.getElementById（'chart_div'））；
图表绘制（数据、选项）；
}
你能帮我吗？：） 我刚刚尝试了以下代码：
<?php
$rows = array();
$table = array();
$table['cols'] = array(
// Labels for your chart, these represent the column titles.
array('label' => 'Date Time', 'type' => 'date'),
array('label' => 'Sensor Value', 'type' => 'number'),
array('type' => 'string', 'role' => 'tooltip', 'p' => array('html' => 'true')),
);
$result = array(
array('datetime' => '2015-04-25 00:00:00', 'sensorValue' => 5),
array('datetime' => '2015-04-25 14:30:00', 'sensorValue' => 10),
array('datetime' => '2015-04-26 02:10:10', 'sensorValue' => 15),
array('datetime' => '2015-04-26 12:10:10', 'sensorValue' => 17),
array('datetime' => '2015-04-27 03:45:23', 'sensorValue' => 25),
array('datetime' => '2015-04-28 15:34:00', 'sensorValue' => 4),
);
/* Extract the information from $result */
foreach($result as $r) {
$temp = array();
// The following line will be used to slice the chart
$temp[] = array('v' => 'Date('.date('Y',strtotime($r['datetime'])).',' .
(date('n',strtotime($r['datetime'])) - 1).','.
date('d',strtotime($r['datetime'])).','.
date('H',strtotime($r['datetime'])).','.
date('i',strtotime($r['datetime'])).','.
date('s',strtotime($r['datetime'])).')');
// Values of the each slice
$temp[] = array('v' => (int) $r['sensorValue']);
$temp[] = array('v' => 'This is a <b>custom</b> tooltip. Insert your data as you like: On the 25th of April, 2015 the sensor value was: <b>5</b>');
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
// convert data into JSON format
$jsonTable = json_encode($table);
?>
<html>
<head>
<script type="text/javascript"
src="https://www.google.com/jsapi?autoload={
'modules':[{
'name':'visualization',
'version':'1',
'packages':['corechart']
}]
}"></script>
<script type="text/javascript">
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable(<?php echo $jsonTable; ?>);
var options = {
title: 'Company Performance',
curveType: 'function',
legend: { position: 'bottom' },
tooltip: {isHtml: true}
};
var chart = new google.visualization.ScatterChart(document.getElementById('curve_chart'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="curve_chart" style="width: 900px; height: 500px"></div>
</body>
</html>
hAxis格式 var options = {
...
hAxis: {
format: 'yyyy-M-d'
}
};
首先感谢您的时间，但我希望它是一个散点图：-/时间（小时、分钟、秒）怎么样？如果你想查看更新的代码，我会随时间更新我的答案。抱歉，我硬编码了时间/日期值，没有心情创建测试mysql表并在其中插入值。希望您理解JSON数据中Date（）构造函数返回的想法和主要内容是的，谢谢，我曾寻找过类似的解决方案，但无法实现。最后一件事，如果你想看的话，我们可以增加方框（）的大小，让它同时显示时间吗？只需将日期和时间作为文本使用，就像你将其插入文本或html一样。同样，这只是text/html，它不是由JSAPI解释的
var options = {
...
hAxis: {
format: 'yyyy-M-d'
}
};