(No version information available, might only be in Git) Tell whether an offset is a boundaryʼs offset

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Convert character code in variable(s)

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Convert character encoding

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Get internal settings of mbstring

(PHP 7) Check if code point has the Lowercase Unicode property

(No version information available, might only be in Git) Create break iterator for title-casing breaks

(PHP >= 5.4.0, PECL intl >= 2.0.0) Checks if a given text contains any confusable characters

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Save the personal wordlist to a file

(PHP 7) Retrieve the name of a Unicode character

(No version information available, might only be in Git) Check if current position is valid