frais fixes automatiques

<?php
$additionalPrice = 0;
$config = hikashop_config();
$mainCurrency = $config->get('main_currency',1);
foreach($this->rows as $i => $row){
    $additionalPrice = YOUVALUE + (float)$additionalPrice;
}
if($additionalPrice != 0){
    $this->additional[] = new stdClass();
    $this->additional[]->name = 'CUSTOMNAME';
    $this->additional[]->price_value = 'CUSTOMVALUE';
    $this->additional[]->price_value_with_tax = 'CUSTOMVALUE';
    $this->additional[]->price_currency_id = $mainCurrency;
}
?>