$No : integer
The PPS index
Class for creating Root PPS's for OLE containers
save(string|resource $filename) : mixed
Method for saving the whole OLE container (including files).
In fact, if called with an empty argument (or '-'), it saves to a temporary file and then outputs it's contents to stdout. If a resource pointer to a stream created by fopen() is passed it will be used, but you have to close such stream by yourself.
The name of the file or stream where to save the OLE container.
true on success