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Subject: Re: domDoc class uses flock()
From: tk.lists@fastmail.fm (Terence)

There are two other methods I should have included (which explains why I 
haven't closed the resource in DOMDOC_AS_WRITEFILE mode.

I realise this question is borderline internals/general but no one in 
the user community seems to be equipped to answer it for me. I 
appologies if I have made an error in this judgement.

     /**
     * mass storage serialisation
     *
     * This function will dump the textual contents of the DOM document 
(in it's
     * current state to) file.
     *
     * @param    uri     path to destination file
     * @return   bool    success or failure
     */
     function Commit() {
         if($this->mode == DOMDOC_AS_WRITEFILE) {
             fwrite($this->fp,$this->xmlGetDoc());
             flock($this->fp,LOCK_UN);
             fclose($this->fp);
         }
         else {
             return $this->objErr->throw(
                 "Commit() can only be used when domDoc is invoked in "
                 ."DOMDOC_AS_WRITEFILE mode"
             );
         }
         return true;
     }

     /**
     * mass storage serialisation
     *
     * This function will dump the textual contents of the DOM document 
(in it's
     * current state to) a specified file.
     *
     * @param    uri     path to destination file
     * @return   bool    success or failure
     */
     function CommitToFile($uriDestination) {
         $fp = fopen($uriDestination,"w+")
             or $this->objErr->throw("CommitToFile: could not open 
".$uriDestination." for writing");
         flock($fp,LOCK_EX);
         fwrite($fp,$this->xmlGetDoc())
             or $this->objErr->throw("CommitToFile: could write to 
".$uriDestination);
         flock($fp,LOCK_UN);
         fclose($fp);
         return true;
     }