Yesterday, just one day before the anniversary of the 1.1.2 release, I published the 1.1.3 release of the PEAR File_MARC library. The only change is the addition of a convenience method for fields called getContents() that simply concatenates all of the subfields together in order, with an optional separator string. Many thanks to Carsten Klee for contributing the code!
You can install File_MARC through the usual channels: PEAR or composer. Have fun!