Add E_DEPRECATED when populating $HTTP_RAW_POST_DATA

main/php_content_types.c

@@ -65,6 +65,12 @@ SAPI_API SAPI_POST_READER_FUNC(php_default_post_reader)
 			php_stream_rewind(SG(request_info).request_body);
 
 			SET_VAR_STRINGL("HTTP_RAW_POST_DATA", data, length);
+
+			sapi_module.sapi_error(E_DEPRECATED,
+				"Automatically populating $HTTP_RAW_POST_DATA is deprecated and "
+				"will be removed in a future version. To avoid this warning set "
+				"'always_populate_raw_post_data' to '-1' in php.ini and use the "
+				"php://input stream instead.");
 		}
 	}
 }

main/php_variables.c

@@ -734,7 +734,6 @@ static zend_bool php_auto_globals_create_post(const char *name, uint name_len TS
 
 	if (PG(variables_order) &&
 			(strchr(PG(variables_order),'P') || strchr(PG(variables_order),'p')) &&
-		!SG(headers_sent) &&
 		SG(request_info).request_method &&
 		!strcasecmp(SG(request_info).request_method, "POST")) {
 		sapi_module.treat_data(PARSE_POST, NULL, NULL TSRMLS_CC);

tests/basic/024.phpt

@@ -10,6 +10,9 @@ a=ABC&y=XYZ&c[]=1&c[]=2&c[a]=3
 var_dump($_POST, $HTTP_RAW_POST_DATA);
 ?>
 --EXPECT--
+Deprecated: Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set 'always_populate_raw_post_data' to '-1' in php.ini and use the php://input stream instead. in Unknown on line 0
+
+Warning: Cannot modify header information - headers already sent in Unknown on line 0
 array(3) {
   ["a"]=>
   string(3) "ABC"

tests/basic/026.phpt

@@ -10,6 +10,9 @@ a=1&b=ZYX
 var_dump($_POST, $HTTP_RAW_POST_DATA);
 ?>
 --EXPECT--
+Deprecated: Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set 'always_populate_raw_post_data' to '-1' in php.ini and use the php://input stream instead. in Unknown on line 0
+
+Warning: Cannot modify header information - headers already sent in Unknown on line 0
 array(0) {
 }
 string(9) "a=1&b=ZYX"