所以我有一个存储在变量
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我知道这是无效的JSON（check here）
现在，当我尝试将其传递给encodeURIComponent()以使其为网址安全时，它不会正确编码。我不知道为什么会这样。
我想将此JSON传递给PHP文件，我希望使用PHPExcel从中生成Excel文件（使用此JSON数据生成）。我这样做是为了让我可以将用户重定向到php页面，将这个JSON作为GET参数传递，并将文件（因为PHPExcel的默认行为，它将文件存储在文件系统中）直接下载到客户端而不将其存储到文件系统。
顺便说一句，使用AJAX是可行的，对PHP文件进行AJAX调用，将此JSON作为POST数据传递，PHP文件构建EXCEL并使用excel文件进行响应，而不将其上传到服务器，以便它可以直接下载到客户端。
答案 0 :(得分：2)
在编码之前，您的字符串长度为8951，请阅读此post以查看GET查询失败的原因。将您的Ajax调用更改为POST，这将有效。
// x is not a string anymore, but a JSON object
var x= {"time":"Friday, January 15, 2016 9:13 PM", .... } ;
$.post ('myurl.php', x, function (ret, status) { ... }) ;