Description: ------------ When reading a file in a while loop, as shown in the script, it is asumed that the end of file marker is retrieved. Yet, this is not the case leading to a buffer overflow. Due to line 265 in the Stream.php. The HTTP Request returns 416 when reading beyond the end of the file. The return value ($data) is cleaned, though the $len value isn't set to 0. This is crucial for line 275 where the end of file marker is set. It is not set by cleaning $data which contains the server message, because the $len value is retrieved before the switch operation. Possible solutions: - set the $len value to 0 when setting $data to "" - retrieve the length of $data after the switch Test script: --------------- if ($fp = fopen("webdav://wampp:xampp@localhost/webdav/webdav.txt", "r")) { while (!feof($fp)) { $buffer .= fread($fp, 1024); } echo $buffer; }