(PHP 4 >= 4.0.2, PHP 5, PHP 7) Suggest spellings of a word

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

(PHP 7) Check if code point is a printable character

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Find position (in grapheme units) of first occurrence of a

(PHP 7) Get the min value for a Unicode property

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Set formatter pattern

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Set/Get substitution character

(PHP >= 5.4.0, PECL intl >= 2.0.0) Private constructor to deny instantiation

(PHP 7) Retrieve the name of a Unicode character

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