Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

MB_OVERLOAD_MAIL (integer)

MB_OVERLOAD_STRING (integer)

MB_OVERLOAD_REGEX (integer)

MB_CASE_UPPER (integer)

MB_CASE_LOWER (integer)

MB_CASE_TITLE (integer)

MB_CASE_FOLD (integer)

Available since PHP 7.3.

MB_CASE_LOWER_SIMPLE (integer)

Available since PHP 7.3.

MB_CASE_TITLE_SIMPLE (integer)

Available since PHP 7.3.

MB_CASE_FOLD_SIMPLE (integer)

Used by case-insensitive operations. Available since PHP 7.3.