PHP解决mui前端框架中的ajax请求跨域问题

在PHP中设置文件头

header("Access-Control-Allow-Origin: *");        header("Access-Control-Allow-Methods: GET, POST");        header("Access-Control-Allow-Headers: Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With");