function for populate values REF, INV, PO

gistfile1.txt

function addPackageLineItem($input)
		{
			$packageLineItem = array
			( 
				'SequenceNumber' => 1,
				'GroupPackageCount' => 1,
				'Weight' => array
				(
					'Value' => $input['Weight'],
					'Units' => 'LB'
				),
				'Dimensions' => array
				(
					'Length' => $input['Length'],
					'Width' => $input['Width'],
					'Height' => $input['Height'],
					'Units' => 'IN'
				),
				'CustomerReferences' => array(
				'0' => array('CustomerReferenceType' => 'CUSTOMER_REFERENCE','Value' => 'CR1234'),
				'1' => array('CustomerReferenceType' => 'INVOICE_NUMBER','Value' => 'IV1234'),
				'2' => array('CustomerReferenceType' => 'P_O_NUMBER','Value' => 'PO1234')
				)

			);
			return $packageLineItem;
		} // end of function addPackageLineItem