(PHP >= 5.4.0, PECL intl >= 2.0.0) Transliterate a string

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

(PHP 5 >= 5.3.0, PHP 7, PECL enchant >= 0.1.0 ) whether or not 'word' exists in this spelling-session

(PHP 7) Get the min value for a Unicode property

(PHP 7) Check if code point has the Uppercase Unicode property

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get the global maximum value for a field

(PHP 5 >= 5.2.0, PHP 7) Finds first occurrence of a string within another, case insensitive

(PHP 7) Perform case folding on a code point

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Checks if a language tag filter matches with locale

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