下列常量由此扩展定义,且仅在此扩展编译入 PHP 或在运行时动态载入时可用。
MB_OVERLOAD_MAIL
(int)
MB_OVERLOAD_STRING
(int)
MB_OVERLOAD_REGEX
(int)
MB_CASE_UPPER
(int)
MB_CASE_LOWER
(int)
MB_CASE_TITLE
(int)
MB_CASE_FOLD
(int)
MB_CASE_LOWER_SIMPLE
(int)
MB_CASE_UPPER_SIMPLE
(int)
MB_CASE_TITLE_SIMPLE
(int)
MB_CASE_FOLD_SIMPLE
(int)
MB_ONIGURUMA_VERSION
(string)
6.9.4
。自 PHP 7.4 起可用。