I'm using this code from book Professional PHP Programming, starting in Chapter 9, page 167:
<?php
//Defining the Session class

class Session
{
    // Define the Properties:

    var $sqlhost='h50mysql47.secureserver.net';
    var $sqluser='coopBulkOrder';
    var $sqlpass='ABCabc123';
    var $sqldb='coopBulkOrder';
    var $linkid;
    var $seshid;
    var $sessdata;
    var $err;
    var $err_no;
    var $expire_time=900; //length of time until expiration in seconds
    var $userid;

    // Define the Methods

    function Session($this->seshid,$this->userid=0)
    {
            //connect to MySQL
        $this->linkid=mysql_connect($this->sqlhost, $this->sqluser, this->sqlpass);

        //verify connection made
        if ($this->linkid) //was not able to connect
        {
            $this->err=mysql_error();
            $this->err_no=101;
            return;
        }
my script continues beyond this point . . . .

When I do, I get this error:
Parse error: parse error, unexpected T_OBJECT_OPERATOR, expecting ')' in /home/content/e/s/p/esplin/html/SLSinfo/BulkOrder/classes/sessions.php on line 22

I have tried to do this in PHP5 by changing the file extension, as suggested by other forums. I have both php4 and php5 installed on the server.

Can someone help me identify the solution the the error? I believe the syntax is correct.