Install PHP Internationalization extension (Intl) on XAMPP on Mac - php

Question

How can I install Intl on my XAMPP server on OS X?
I tried modifying my XAMPP>etc>php.ini and uncommenting the line:
;extension=php_intl.dll
and restarting Apache, but it didn't work.

Answer 1

Installing "intl" extension on OSX.
Normally, the PHP is automatically installed on OSX.
So, if you would like to use the XAMPP, or whatever apache server, you must change the path point to XAMPP. You can check the path by using:
$ which php
You should get
/Applications/XAMPP/xamppfiles/bin/php
if not, you will get
/usr/bin/php.
This is OSX' php. So, you have to change it by using:
$ PATH="/Applications/XAMPP/xamppfiles/bin:${PATH}"
Now, it's time to install intl. Firstly, you need to install icu4c
$ brew install icu4c
It takes a couple of times and returns its path to you, should look something like this:
/usr/local/Cellar/icu4c/x.x.x
Next, let's install intl by using pecl
$ sudo pecl update-channels
$ sudo pecl install intl
It will prompt you to put the icu4c path.
After finish installing icu4c, put the following statement to php.ini
extension=intl.so
Restart apache. and check whether it's neatly installed.
$ php -m | grep intl
should return 'intl'
That's it!

Answer 2

On OSX if you have homebrew available and have PHP7:
$ brew install php70-intl // For PHP7.0
$ brew install php71-intl // For PHP7.1
For PHP5.5:
$ brew install php55-intl
Re-open your terminal window to ensure it works right in your session. To see if it loaded via your CLI interpreter:
$ php -m | grep intl
Or:
$ php -i "(command-line 'phpinfo()')" | grep intl
Source: https://daveismyname.blog/blog/install-php-intl-on-mac-using-homebrew

Answer 3

I failed on my XAMPP on Mac with:
$ brew install icu4c
, after which I've got message:
intl ICU version installed on your system is outdated (4.8.1.1) and does not match the ICU data bundled with Symfony (57.1)
I solved my problem by running command to download, unpack, compile and install ICU of required version (you can choose another version here http://site.icu-project.org/download if needed, file should ends with ...src.tgz):
$ curl -sS -o /tmp/icu.tar.gz -L http://download.icu-project.org/files/icu4c/57.1/icu4c-57_1-src.tgz && tar -zxf /tmp/icu.tar.gz -C /tmp && cd /tmp/icu/source && ./configure --prefix=/usr/local && make && sudo make install
than run:
$ sudo pecl install intl
and specified where ICU libraries and headers can be found [DEFAULT] :
/usr/local
then edited 'php.ini' with extension=intl.so and reboot apache.
Checked result with:
<?php
if (extension_loaded('intl')) {
echo "PHP: " . PHP_VERSION . "<br>\n";
echo "ICU: " . INTL_ICU_VERSION . "<br>\n";
} else {
die('OOPS! The intl extension is not enabled!');
}