(PHP 5.5.0, PHP 7, PECL >= 3.0.0a2) Create an IntlCalendar from a DateTime object or string

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Get a symbol value

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

(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 a currency value

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

(PHP 5, PHP 7) Returns an array of all supported encodings

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Multibyte regular expression match for predefined multibyte string

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Compare two Unicode strings

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