Warning:  fopen(./textdatei.txt) [function.fopen]: failed to create stream: No such file or directory in /home/thomas/public_html/test/artikel_locking/get_handle.php on line 7

Das Dateihandle lautet: 

Warning:  fclose(): supplied argument is not a valid stream resource in /home/thomas/public_html/test/artikel_locking/get_handle.php on line 9