remove empty rows/whitespace

[NZ_Kiwis]

I've got a web form which posts data and splits each line into it's row record via an array, what i want to do is prevent this database from having "whitespace" even in the form of empty rows after my data? how can i do this? an example is...

"Test
test
test
test

"

or even

"

test
test
":

[bradgrafelman]

[man]explode/man the data on the line breaks and use [man]array_filter/man to remove the empty values.