Question

想用chart.js画图，是否只能用js来传递参数呢？如果用php来写，如何弄？

想用chart.js画图，是否只能用js来传递参数呢？如果用php来写，如何弄？

Answer 1

将option参数用php生成。
前台自己写js来控制

追问

能不能给个简单的示范？

追答

你看一下官方给的chart.js的正式文档吧。
var data = {
labels : ["January","February","March","April","May","June","July"],
datasets : [
{
fillColor : "rgba(220,220,220,0.5)",
strokeColor : "rgba(220,220,220,1)",
pointColor : "rgba(220,220,220,1)",
pointStrokeColor : "#fff",
data : [65,59,90,81,56,55,40]
},
{
fillColor : "rgba(151,187,205,0.5)",
strokeColor : "rgba(151,187,205,1)",
pointColor : "rgba(151,187,205,1)",
pointStrokeColor : "#fff",
data : [28,48,40,19,96,27,100]
}
]
}
///这个就是用php生成的

var ctx = document.getElementById("myChart").getContext("2d");
var myNewChart = new Chart(ctx).PolarArea(data);
var ctx = $("#myChart").get(0).getContext("2d");
//This will get the first returned node in the jQuery collection.
var myNewChart = new Chart(ctx);
new Chart(ctx).PolarArea(data,options);