(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Calculate difference between given time and this objectʼs time

(PHP 7) Get the Unicode version public static

(PHP >= 5.3.2, PECL intl >= 2.0.0) Create a resource bundle

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Set the substitution chars

(PHP 7) Check if code point is an ignorable character

(PHP 7) Return Unicode code point value of character

(PHP 7) Check if code point is permissible as the first character in an identifier

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Parse input string according to pattern

(No version information available, might only be in Git) Get the current element

(No version information available, might only be in Git) Move forward to the next element