NetSuite API Item Fulfillment

This is a NetSuite API application. The PHP application uses the NetSuite PHP toolkit. I need a working sample of code (in PHP) to send Serial Numbers for a NetSuite Sales Order when picking is completed. If there are multiple lines in the order, I need to be able to pick one line at a time. Bonus points if you allow both picking a single line or picking multiple lines. Write a method such as: function setItemPicked( $soInternalId, $lineNumber, $quantityPicked, $strSerialNumberList) { global $nsService; // NetSuite service - already connected <Fill in the blank here> }