display values in a drop downlists in a form entered from another form in php

[Lauren_fromAM]

An user enters values in an input feild in a form that value should be displayed in a drop down lists in another form and again when enters value in the same input feild of first form then the previous value which is displayed in the drop down list in second form should not be deleted.Both values should be there in the drop downlist of second table.