2 questions à propos des images produits lors de la saisie français-anglais

$productDisplayTypes = array('productDisplayShipments', 'productDisplayPayments');
		foreach ($productDisplayTypes as $productDisplayType) {

			if(empty($this->$productDisplayType)){
				continue;
			} else if (!is_array($this->$productDisplayType)) {
				$this->$productDisplayType = array($this->$productDisplayType);
			}

			foreach ($this->$productDisplayType as $productDisplay) {

				if(empty($productDisplay)){
					continue;
				} else if (!is_array($productDisplay)){
					$productDisplay = array($productDisplay);
				}

				foreach ($productDisplay as $virtuemart_method_id =>$productDisplayHtml) {
					?>
					<div class="<?php echo substr($productDisplayType, 0, -1) ?> <?php echo substr($productDisplayType, 0, -1).'-'.$virtuemart_method_id ?>">
						<?php
						echo $productDisplayHtml;
						?>
					</div>
					<?php
				}
			}
		}