Resource Types
Summaries of supported encodings
Multibyte String
PHP Manual

# 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 )

Resource Types
Summaries of supported encodings
Multibyte String
PHP Manual