move_uploaded_file Moves an uploaded file to a new location boolmove_uploaded_file stringfilename stringdestination This function checks to ensure that the file designated by filename is a valid upload file (meaning that it was uploaded via PHP's HTTP POST upload mechanism). If the file is valid, it will be moved to the filename given by destination. If filename is not a valid upload file, then no action will occur, and move_uploaded_file will return &false;. If filename is a valid upload file, but cannot be moved for some reason, no action will occur, and move_uploaded_file will return &false;. Additionally, a warning will be issued. This sort of check is especially important if there is any chance that anything done with uploaded files could reveal their contents to the user, or even to other users on the same system. move_uploaded_file is both &safemode; and open_basedir aware. However, restrictions are placed only on the destination path as to allow the moving of uploaded files in which filename may conflict with such restrictions. move_uploaded_file ensures the safety of this operation by allowing only those files uploaded through PHP to be moved. If the destination file already exists, it will be overwritten. See also is_uploaded_file, and the section Handling file uploads for a simple usage example.