(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.2, PHP 7, PECL idn >= 0.1) Convert domain name from IDNA ASCII

(PHP 5 >= 5.3.11, PHP 7, PECL intl >= 1.0.3) Get sorting key for a string

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get set of locale keyword values

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Set the pattern used for the IntlDateFormatter

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Get string length in grapheme units

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Gets the default locale value from the INTL global 'default_locale'

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Format the date/time value as a string

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Gets the keywords for the input locale

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get last error message on the object

(PHP 5 >= 5.3.0, PECL intl >= 1.0.0) Sets the time zone to use