UNSET isn't working

[myrddinwylt]

The following code returns this error:

 

Parse error: syntax error, unexpected T_UNSET in C:\server\websites\127.0.0.1\htdocs-ssl\cdrdownloader\includes\invoice.class.php on line 41

 

<?php
require_once './includes/tcpdf/config/lang/eng.php';
require_once './includes/tcpdf/tcpdf.php';
require_once './includes/tcpdf_invoice_lib.php';

class invoices {
private $numbers = array();
private $pdf = null;
private $billaddr = null;
    private $customers = array();
    private $customers_currentid = null;

public $cdr = array();


private $invoiceid = null;
    private $invoicedate = array();
    private $invoiceperiod = array();

    private $clients = array();


    private $batch = array();
    private $mysql = array();
    private $conn = null;

    private $invoice_output_path = "securefiles";

    function __construct($mysql,$files) {
        $this->mysql = $mysql;
        $this->files = $files;
        $date = date('mdy');
//        $date = '2009-10-01';
        $this->batch = array('lastmonthpayments'=>date('Y-m',strtotime ( '-2 month' , strtotime ( $date ) )) . '-01', 'lastmonth'=>date('Y-m',strtotime ( '-1 month' , strtotime ( $date ) )), 'lastmonthstart'=>date('Y-m',strtotime ( '-1 month' , strtotime ( $date ) )) . '-01', 'lastmonthend' => date('Y-m-j',strtotime('-1 day', strtotime(date('Y-m',strtotime ( $date )) . '-01'))),'thismonth'=>date('Y-m',strtotime($date)) . '-01','thismonthlate'=>date('Y-m',strtotime($date)) . '-20');
        $this->invoiceperiod = array($this->batch['lastmonthstart'],$this->batch['lastmonthend']);
        $this->connect();

    }

function newInvoice() {
    if(isset($this->pdf)) { unset($this->pdf); }
        if(isset($this->cdr)) { unset($this->cdr); }

        $this->pdf = new Invoice();
        $this->cdr = null;

}

?>

 

Since setting $this->pdf to NULL doesn't free it's used memory space, and "unset()" is returning an error..... ummm....  what the hell am i supposed to do  XD.  This is driving me insane.  TCPDF has a huge memory leak, but I really don't have a choice in using it, so I need to implement some garbage cleanup freeing it's memory space prior to moving on to the next record.

 

Any suggestions that will work ?

 

Thanks.

[myrddinwylt]

Had to modify inside TCPDF libraries as well for some strange reason. After doing that, this magically began working o.0