【发布时间】:2014-04-22 11:25:15
【问题描述】:
在谷歌折线图上工作。我遇到的问题是图表上显示了一天的值,没有实现带有日期的时间表。我知道如果您从一周内获得价值,图表会很宽,有什么办法可以解决这个问题吗?我在想这样的事情吗?
它现在的样子:
数据库:(日期在phpadmin中保存为日期)
代码:
<?php
$con=mysql_connect("localhost","root","") or die("Failed to connect with database!!!!");
mysql_select_db("chart", $con);
$sth = mysql_query("SELECT * FROM googlechart");
$rows = array();
//flag is not needed
$flag = true;
$table = array();
$table['cols'] = array(
// Labels for your chart, these represent the column titles
// Note that one column is in "string" format and another one is in "number" format as pie chart only required "numbers" for calculating percentage and string will be used for column title
array('label' => 'Time', 'type' => 'number'),
array('label' => 'PH', 'type' => 'number'),
array('label' => 'temperature','type' => 'number'),
array('label' => 'Chlorine','type' => 'number'),
);
$rows = array();
while($r = mysql_fetch_assoc($sth)) {
$temp = array();
$temp[] = array('v' => (string) $r['Time']);
$temp[] = array('v' => (string) $r['PH']);
$temp[] = array('v' => (string) $r['temperature']);
$temp[] = array('v' => (string) $r['Chlorine']);
$temp[] = array('v' => (int) $r['Time']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
$jsonTable = json_encode($table);
echo $jsonTable;
?>
<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable(<?=$jsonTable?>);
var options = {
/*width: 900, height: 900, */
title: 'Visualization',
/* curveType: 'function', */
legend: { position: 'bottom' },
pointSize: 10,
vAxis: {title: "Values", titleTextStyle: {italic: false}},
hAxis: {title: "Time", titleTextStyle: {italic: false}},
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
</body>
</html>
【问题讨论】:
标签: javascript php mysql date google-visualization