any one able to help me to correct this at all please

PHP Code:
function importdue()
{
                
                
$importduetimes $dbh->prepare("LOAD DATA LOCAL INFILE '/tmp/trains.csv' INTO TABLE Trains FIELDS TERMINATED BY ',' IGNORE 1 LINES (Due,Destination,Status,Platform,Details)");
                
$importduetimes->execute();
                } 
returns

Code:
Fatal error: Call to a member function prepare() on a non-object in /var/www/trains/functions.php on line 64