Signature
native mb_strtolower(string[], maxlength = 0);
Description
Performs a multi-byte safe (UTF-8) conversion of all chars in string to lower case.
Notes
-
Although most code points can be converted in-place, there are notable
exceptions and the final length can vary.
- Case mapping is not reversible. That is, toUpper(toLower(x)) != toLower(toUpper(x)).
Parameters
- string — The string to convert.
-
maxlength
—
Optional size of the buffer. If 0, the length of the original string
will be used instead.
Returns
Number of bytes written.