Now IS_BINRAY data type is removed and IS_STRING starts behave as IS_BINARY in unicode mode. IS_STRING is incompatible with IS_UNICODE, so ALL functions should be improved to support unicode mode.
negative memory size in situations where the sprintf implementation of the
host system generated less decimal places than were requested.
Resolved this issue by making number_format examine the string returned
by spprintf and have it pad to the correct number of decimal places.
Added a test-case based on the bug report; the length of decimal places
required to trigger this bug is sprintf implementation dependent; as the
implementation is now using spprintf (provided by PHP), that number is
78 digits (NDIG - 2).
# I played with the idea of enhancing sprintf to do the equivalent, but
# it was too much effort considering that the precision of floats/doubles
# is not good enough to warrant it.
# This fix could do with some QA from someone else to make sure there are
# no memory bounds problems and then MFH it to PHP_4_3
