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

(PHP 5 >= 5.3.0, PHP 7, PECL enchant:0.2.0-1.0.1) Check the word is correctly spelled and provide suggestions

(PHP 5 >= 5.3.0, PHP 7, PECL enchant >= 0.1.0) Enumerates the Enchant providers

(PHP 5, PHP 7) Decodes a MIME header field

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Perform case folding on a string

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

(No version information available, might only be in Git) Get last code point passed over after advancing or

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

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Set start point of next regular expression match

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Get collation attribute value