利用js或ajax或php获取请求头及里面东西的方法

js获取请求头其中信息，通过XMLHttpRequest

var req = new XMLHttpRequest();req.open('GET', document.location, false);req.send(null);var headers = req.getAllResponseHeaders().toLowerCase();console.log(headers);var iwant = req.getResponseHeader('door');console.log(iwant);

ajax获取请求头 getAllResponseHeaders方法

$.ajax({         type: "GET",         url: "api",         dataType: 'JSON',         success: function(data, textStatus, request) {         var headers = request.getAllResponseHeaders().toLowerCase();         console.log(headers);         //获取头部时间参数date                      var headerdate = request.getResponseHeader('date');         console.log(headerdate);}});

PHP获取请求头 getallheaders方法

来源地址：https://blog.csdn.net/qq_49416650/article/details/126926255