从php使用d3.json（）获取json数据不起作用

Question

我正在使用Javascript d3.js库绘制一些图表，这些图表正在使用php从MySQL数据库获取数据。 我已经使用d3.json（）从php文件中读取，该文件正在“回显”一些JSON值。 这在我的PC XAMPP服务器上工作正常，但在000webhost空闲服务器上不起作用。 有人可以告诉我可能是什么问题吗？ 我正在使用以下方式获取JSON数据。

d3.json(d3/section1/section1.php, function(data) {...

php文件正在回显以下json数组：

[{"spark":[1,0.2,0.3,0.5,0.1,0.4,0.8,0.3,0.2,0.7,0.6,0.9],"mes":[88],"mark":[90],"info":"Network"},{"spark":[0.1,0.3,0.2,0.5,0.1,0.4,0.2,0.3,0.2,0.7,0.6,0.5],"mes":[87],"mark":[85],"info":"ERP"},{"spark":[1,0.2,0.3,0.5,0.1,0.4,0.8,0.3,0.2,0.7,0.6,0.9],"mes":[90],"mark":[100],"info":"Data Warehouse"},{"spark":[1,0.2,0.3,0.5,0.1,0.4,0.8,0.3,0.2,0.7,0.6,0.9],"mes":[95],"mark":[90],"info":"Web Site"},{"spark":[1,0.2,0.3,0.5,0.1,0.4,0.8,0.3,0.2,0.7,0.6,0.9],"mes":[98],"mark":[88],"info":"Email"},{"spark":[1,0.2,0.3,0.5,0.1,0.4,0.8,0.3,0.2,0.7,0.6,0.9],"mes":[90],"mark":[96],"info":"HR"},{"spark":[1,0.2,0.3,0.5,0.1,0.4,0.8,0.3,0.2,0.7,0.6,0.9],"mes":[100],"mark":[92],"info":"Problem Tracking"}]

Answer 1

URL不需要是字符串吗？

d3.json("d3/section1/section1.php", function(data) {...

Answer 2

问题已经解决了。 在线服务器是一个免费服务器，它在每个页面的末尾嵌入了一个用html标记括起来的javascript。 这在调用预期的正确JSON字符串时造成了问题。