&reftitle.install;

This extension is enabled by default, although it may be disabled by compiling with `--without-iconv`.

The optional `--with-iconv-dir` directive is used to specify the location of iconv on the system that PHP is being compiled on, otherwise only the default locations are scanned.

## Note to PHP 4 users

Enabling this extension requires building with `--with-iconv=[DIR]`, or Windows users may enable by having `iconv.dll` available in the systems PATH, and `php_iconv.dll` enabled in &php.ini;.