[英]Google charts from MySQL
我已經嘗試了幾個小時在 Google 圖表中獲取 MySQL 數據,但我無法從互聯網上遇到的示例中了解如何制作工作頁面。
為了重新開始,我從谷歌圖表中拿了一個例子,並用數據手動填充它。 這給了我想要的圖表。 谷歌圖表是由一個簡單的 HTML 頁面生成的(只是可變部分:
....
function drawChart() {
var data = google.visualization.arrayToDataTable([
['date', 'Baxico' , 'Degriek' , 'Foldman' , 'Madmeijs' , 'Marcello' , 'Meijster' , 'Pokermom'],
['110415180035', 38, 1, 16, 10, 6, 4, 25 ],
['110415190222', 38, 16, 6, 4, 1, 25, 10 ],
['110415200747', 6, 38, 25, 10, 1, 16, 4 ],
['110415211933', 10, 38, 6, 25, 4, 16, 1 ],
['110415222033', 16, 1, 10, 6, 38, 25, 4 ],
['110415232833', 38, 4, 1, 25, 10, 6, 16 ]
]);
我在 MySQL 中做了相同的數據輸出:
select tournamentid
,(select points from pokermax_scores as t2 where playerid = 'Baxico' and t1.tournamentid = t2.tournamentid) as Baxico
,(select points from pokermax_scores as t2 where playerid = 'Degriek' and t1.tournamentid = t2.tournamentid) as Degriek
,(select points from pokermax_scores as t2 where playerid = 'Foldman' and t1.tournamentid = t2.tournamentid) as Foldman
,(select points from pokermax_scores as t2 where playerid = 'Madmeijs' and t1.tournamentid = t2.tournamentid) as Madmeijs
,(select points from pokermax_scores as t2 where playerid = 'Marcello' and t1.tournamentid = t2.tournamentid) as Marcello
,(select points from pokermax_scores as t2 where playerid = 'Meijster' and t1.tournamentid = t2.tournamentid) as Meijster
,(select points from pokermax_scores as t2 where playerid = 'Pokermom' and t1.tournamentid = t2.tournamentid) as Pokermom
from pokermax_scores as t1
group by tournamentid
結果相同的數據: http : //i60.tinypic.com/6nqp76.png
但我無法如本示例所示加載數據: http : //datamakessense.com/google-charts-api-from-your-sql-database-to-a-live-chart-with-no-coding -技能/
我可以建立數據庫連接並粘貼 SQL,但我不清楚如何設置腳本以便從 SQL 獲取數據。
嘿,伙計,我遇到了同樣的問題,您要做的是獲取錦標賽 ID 並為每個數據列繪制一條線、條、列或任何稱為“數據透視表”的問題嘗試在互聯網上搜索,有兩個對此的不同解決方案:
檢查下面的代碼:使用第二種解決方案。
<?php
/* Connect to database */
$mysqli = new mysqli("localhost","root","123","charts");
if(mysqli_connect_errno()){
trigger_error('Connection failed: '.$mysqli->error);
}
/* Build the query */
$query = "SELECT a.item_code,a.total,a.date FROM chart_values a, (SELECT DISTINCT item_code FROM chart_values GROUP BY item_code,date) b WHERE a.item_code = b.item_code";
/* Loop through the results and build a JSON array for the data table */
$result = $mysqli->query($query);
$table = array();
while ($row = $result->fetch_array(MYSQLI_ASSOC)) {
if (!isset($table[$row['item_code']])) {
$table[$row['item_code']] = array(
'total' => array(),
'date' => array()
);
}
$table[$row['item_code']]['total'][] = $row['total'];
$table[$row['item_code']]['date'][] = $row['date'];
}
echo var_dump($table);
$datas = json_encode($table);
$datas = json_decode($datas,true);
// echo '<pre>';
// print_r($datas);
$googleData = array('Date');
foreach($datas as $key => $data){
$googleData[] = $key;
}
for($i=0;$i<count($datas);$i++){
foreach($datas as $key => $data){
if(!in_array($data['date'][$i], $googleData)){
$googleData[] = $data['date'][$i];
}
$googleData[] = $data['total'][$i];
}
}
$googleData = json_encode(array_chunk($googleData,count($datas)+1), JSON_NUMERIC_CHECK);
// print_r($googleData);
?>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<body>
<div style="width:90%; height:500px;" id="columnchart_material" style="width: 1000px; height: 500px;"></div>
</body>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.arrayToDataTable(<?=$googleData?>);
var options = {
chart: {
title: 'Company Performance',
subtitle: 'Sales, Expenses, and Profit: 2014-2017',
}
};
var chart = new google.visualization.ColumnChart(document.getElementById('columnchart_material'));
chart.draw(data, options);
}
</script>
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