php - undefined variable : HTTP_RAW_POST_DATA

Question

当我对 $HTTP_RAW_POST_DATA 做一个简单的回应时，我得到了错误:

Undefined variable: HTTP_RAW_POST_DATA

我在 php.ini 中读到我需要取消勾选

always_populate_raw_post_data = On

但我仍然收到错误消息，我也确实重新启动了 Apache。我正在使用 php 5.3.6

Answer 1

如果您需要访问原始 POST 正文，您应该根据 relevant manual entry 真正倾向于使用 php://input 流而不是 $HTTP_RAW_POST_DATA :

php://input is a read-only stream that allows you to read raw data from the request body. In the case of POST requests, it is preferable to use php://input instead of $HTTP_RAW_POST_DATA as it does not depend on special php.ini directives. Moreover, for those cases where $HTTP_RAW_POST_DATA is not populated by default, it is a potentially less memory intensive alternative to activating always_populate_raw_post_data. php://input is not available with enctype="multipart/form-data".

因此，要使用 php://input 访问 POST 正文:

$post = file_get_contents('php://input');