ctype_alnum(mixed $text) : mixed
ctype_alpha(mixed $text) : mixed
ctype_cntrl(mixed $text) : mixed
ctype_digit(mixed $text) : mixed
ctype_graph(mixed $text) : mixed
ctype_lower(mixed $text) : mixed
ctype_print(mixed $text) : mixed
ctype_punct(mixed $text) : mixed
ctype_space(mixed $text) : mixed
ctype_upper(mixed $text) : mixed
ctype_xdigit(mixed $text) : mixed