mb_language() sets language. If
language is omitted, it returns current
language as string.
language setting is used for encoding
e-mail messages. Valid languages are "Japanese",
"ja","English","en" and "uni"
(UTF-8). mb_send_mail() uses this setting to
Language and its setting is ISO-2022-JP/Base64 for Japanese, UTF-8/Base64 for uni, ISO-8859-1/quoted printable for English.
Return Value: If
language is set and
language is valid, it returns
TRUE. Otherwise, it returns FALSE. When
language is omitted, it returns language
name as string. If no language is set previously, it returns
See also mb_send_mail().