Reading specific row or column - phpExcel
There are plenty of methods:
$cellValue = $objPHPExcel->getActiveSheet()->getCell('C15')->getValue();will read the value of a specific cell (C15 in this case) into the variable $cellValue
or
$cellValues = $objPHPExcel->getActiveSheet()->rangeToArray('C15:C18');will read a range of values to an array.
Once you've retrieved the contents of a cell to a normal PHP variable, it's easy enough to insert them into a database as you'd insert any data avalues into a database.