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

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

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Sets the calendar type used by the formatter

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

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Returns a key-value array of locale ID subtag elements.

(PHP 7) Get the property constant value for a given property name

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

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get the objectʼs timezone

(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) Returns an appropriately localized display name for variants