(No version information available, might only be in Git) Set position to the first character in the text

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

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns the matched part of a multibyte regular expression

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Convert character encoding

(PHP 5, PHP 7) Decodes multiple MIME header fields at once

(PHP 5 >= 5.3.0, PHP 7, PECL enchant >= 0.1.0 ) Free the broker resource and its dictionnaries

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

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Set a text attribute

(PHP >= 5.3.2, PECL intl >= 2.0.0) Get supported locales

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Get collator's last error code