(PHP 4, PHP 5)
$HTTP_RAW_POST_DATA — Raw POST data
This feature has been DEPRECATED as of PHP 5.6.0. Relying on this feature is highly discouraged.
$HTTP_RAW_POST_DATA contains the raw POST data. See always_populate_raw_post_data.
In general, php://input should be used instead of $HTTP_RAW_POST_DATA.