Determines if a string has both upper cased and lower cased characters.This function is valid in v2.0.0. This function has been downloaded 0 times.
true, characters without casing found in
strwill be viewed as mixed cased characters.
strhas mixed cased characters or if
stronly has characters without casing. Otherwise
This function directly requires the following functions which are included automatically:
This function is directly required by the following functions: