我对谷歌图表有疑问,当我使用 addRows 命令时,我的 php 变量采用所需的格式就足够了吗?
我将放置我正在使用的代码:
<!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1.0",{"packages":["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart(){
//create the data table
var data = new google.visualization.DataTable();
data.addColumn("string","Fruits");
data.addColumn("number","Amount");
data.addRows([<?php echo "'$jsRows'";?>]);
//set chart options
var options = {"title":"Amount of different fruits",
"width":400,
"height":300};
//instantiate and draw chart, passing in options
var options = new google.visualization.PieChart(document.getElementById("chart_div"));
chart.draw(data, options);
} //end of drawchart function
</script>
当我写:echo $jsRows
; 我得到:["0 as 6 h",0],["6 as 12h",0],["12 as 18h",8],["18 as 24h",0]
,这是谷歌图表可以处理的数据格式,但是使用此代码,我的图表不会出现。有谁知道为什么?提前致谢!