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

(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 last error message on the object

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Parse string to a field-based time value

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Function to extract a sequence of default grapheme clusters

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Tell whether a day is a weekday, weekend or a day that has a transition

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Get the error text from the last operation

(PHP 7) Find Unicode character by name and return its code point value

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Returns an appropriately localized display name for variants

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Format a number