p;            if(GetType($response)!="string")
                                return("Could not get APOP login command response");
                        if(strtok($response," ")!="+OK")
                                return("APOP login failed: ".strtok(" "));
                }
                else
                {
                        if($this->PutLine("USER $user")==0)
                                return("Could not send the USER command");
                        $response=$this->GetLine();
                        if(GetType($response)!="string")
                                return("Could not get user login entry response");
                        if(strtok($response," ")!="+OK")
                                return("User error: ".strtok(" "));
                        if($this->PutLine("PASS $password")==0)
                                return("Could not send the PASS command");
                        $response=$this->GetLine();
                        if(GetType($response)!="string")
                                return("Could not get login password entry response");
                        if(strtok($response," ")!="+OK")
                                return("Password error: ".strtok(" "));
                }
                $this->state="TRANSACTION";
                return("");
        }

        /* Statistics method - pass references to variables to hold the number of
     messages in the mail box and the size that they take in bytes.  */

        Function Statistics($messages,$size)
        {
                if($this->state!="TRANSACTION")
                        return("connection is not in TRANSACTION state");
                if($this->PutLine("STAT")==0)
                        return("Could not send the STAT command");
                $response=$this->GetLine();
                if(GetType($response)!="string")
                        return("Could not get the statistics command response");
                if(strtok($response," ")!="+OK")
                        return("Could not get the statistics: ".strtok(" "));
                $messages=strtok(" ");
                $size=strtok(" ");
                return("");
        }

        Function ListMessages($message,$unique_id)
        {
                if($this->state!="TRANSACTION")
                        return("connection is not in TRANSACTION state");
                if($unique_id)
                        $list_command="UIDL";
                else
                        $list_command="LIST";
                if($this->PutLine("$list_command $message")==0)
                        return("Could not send the $list_command command");
                $response=$this->GetLine();
                if(GetType($response)!="string")
                        return("Could not get message list command response");
                if(strtok($response," ")!="+OK")
                        return("Could not get the message listing: ".strtok(" "));
                if($message=="")
                {
                        for($messages=array();;)
                        {
                         &

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