In **sales_order_item** table, there's a column **product_options** to store some custom values. 

I need to get the **deliverydates** from the following value from a order object

    {"info_buyRequest":{"qty":"1","super_attribute":{"137":"2803","93":"17717"},"product":"37702","deliverydates":"2018-04-07"}}

I have tried the following code, but is not working.

        foreach ($this->order->getAllVisibleItems() as $orderItem) {
			$options = $orderItem->getProductOptions(); 
			#$options = $orderItem->getProduct()->getTypeInstance(true)->getOrderOptions($orderItem->getProduct());
			if(!empty($options['options'])) {        
				foreach ($options['options'] as $option) {
					if ($option['label'] = 'deliverydates'){
						$deliverydate = $option['value'];
					}
				}
			}