2 http_send_data() multiple ranges
9 HTTP_RANGE=bytes=0-0,-1
12 http_send_content_type('text/plain');
19 Content-Type: multipart/byteranges; boundary=%d.%d
23 Content-Type: text/plain
24 Content-Range: bytes 0-0/2
28 Content-Type: text/plain
29 Content-Range: bytes 1-1/2