&reftitle.install;

This extension may be installed using the bundled version as of PHP 5.3.0, or as a PECL extension as of PHP 5.2.0. In other words, there are two methods to install the intl extension.

&pecl.info; &url.pecl.package;intl.

Alternatively, `--enable-intl` will enable the bundled version while compiling PHP.

If your ICU is installed to a non-standard directory then you might want to specify its location in `LD_LIBRARY_PATH` environment variable so that dynamic linker can find it:

    $ export LD_LIBRARY_PATH=/opt/icu/lib

Otherwise, if PHP and ICU are installed to their default locations, then the additional options to `configure' are not needed.