crack_getlastmessage() returns the message from the last obscure check.
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
The message from the last obscure check or FALSE if there was no obscure checks made so far.
The returned message is one of:
it's WAY too short
it is too short
it does not contain enough DIFFERENT characters
it is all whitespace
it is too simplistic/systematic
it looks like a National Insurance number.
it is based on a dictionary word
it is based on a (reversed) dictionary word