Decode quoted print message in php

I have a string that is quoted-printable encoded . How do I do this in php?

Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Vestibulum felis =
pede, vestibulum et, ullamcorper in, ultrices eget, metus. Suspendisse in n=
ulla. Sed justo. Donec dapibus auctor neque. Pellentesque faucibus ante nec=
 metus. Vivamus feugiat, velit rhoncus semper suscipit, libero augue venena=
tis leo, nec ornare nulla elit eget diam. Nullam sollicitudin.