Asi te sugiero hacerlo:
Código PHP:
function FindkeyWords(text as string, key as datatable) as string
dim dr as DataRow = Key.select("palabra='"& text &"'")
if dr.length-1 >= 0 then
Response.write "Encontro"
else
Response.write "No hay Nada"
end if
end function
Saludos!