PHP Post获取不到非表单数据的问题解决办法

; whether php will read the post data.
; this option is enabled by default.
; most likely, you won't want to disable this option globally. it causes $_post
; and $_files to always be empty; the only way you will be able to read the
; post data will be through the php://input stream wrapper. this can be useful
; to proxy requests or to process the post data in a memory efficient fashion.
; http://php.net/enable-post-data-reading
enable_post_data_reading = on  //大约656行，修改此条

$raw = file_get_contents('php://input');//获取非表单数据
echo $raw;//输出结果

headers: {
  "content-type": "application/json; charset=utf-8"
}