[英]Multidimensional array json_encoded
我試圖將日期和收入的多維數組作為JSon數組返回,以便在面板儀表板上顯示圖表。 不幸的是,當我不對JSon數組進行硬編碼時,圖表出現了一些問題,因此我現在正在對其進行調試,我想知道為什么我的json_encoded數組看起來如此奇怪。
這是我的面板,它繪制圖表並從data.php請求數據:
jQuery.getJSON("data.php", { request: "revenues" }, function (result) {
var revenues = result["amount"];
alert(revenues);
$(".monthly-sales").sparkline(revenues, {
type: 'bar',
barColor: '#ff4e50',
height: '55px',
width: '100%',
barWidth: 8,
barSpacing: 1
});
});
data.php:
elseif($request == "revenues"){
// Output Revenues per day from nexus store
$revenues = array();
$revenues["dates"] = array();
$revenues["amount"] = array();
$sql = "select i_total as revenue, date(FROM_UNIXTIME(i_date)) as date FROM nexus_invoices WHERE i_status='paid' GROUP BY date(FROM_UNIXTIME(i_date)) ORDER BY i_date DESC LIMIT 0,10";
$rows = $db->query($sql);
foreach($rows as $row){
$revenues["dates"][] = $row['date'];
$revenues["amount"][] = floatval($row['revenue']);
}
//$revenues["amount"] = [1,5,5.5,5.4,5.8,6,8,9,13,12,10,11.5,9,8,5,8,9];
echo json_encode($revenues);
}
這段代碼的JSon結果是我所期望的:
{
"dates":[
"2015-06-13","2015-06-12","2015-06-10","2015-06-09","2015-06-07",
"2015-06-06","2015-06-05","2015-06-04","2015-06-02","2015-05-31"
],
"amount":[8,22,8,8,22,8,8,8,8,8]
}
不幸的是,由於未知原因,這行不通。 為了進一步調試它,我取消了對$revenues["amount"]
進行硬編碼的行的注釋,並注釋了foreach的第二行。 然后工作正常。 此json_encoded回顯的結果是這樣的:
{
"dates":[
"2015-06-13","2015-06-12","2015-06-10","2015-06-09","2015-06-07",
"2015-06-06","2015-06-05","2015-06-04","2015-06-02","2015-05-31"
],
"amount":[1,5,5.5,5.4,5.8,6,8,9,13,12,10,11.5,9,8,5,8,9]
}
硬編碼數組時的外觀:
從數據庫中填充數組時的外觀:
我認為您的問題不在json數組中,而是在sparkline插件中。
在顯示數據庫數據時嘗試添加以下內容: chartRangeMin:5
$(".monthly-sales").sparkline(revenues, {
type: 'bar',
barColor: '#ff4e50',
height: '55px',
width: '100%',
barWidth: 8,
barSpacing: 1,
chartRangeMin:5
});
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