[php] How to install PHP intl extension in Ubuntu 14.04

I have a hard time to find exact method to install PHP intl extension in Ubuntu 14.04.

I tried with sudo apt-get install php5-intl but displays error Unable to locate package.

I really need this extension for Zend Framework 2 , because of above missing extension I am getting error like this

ERROR: Zend\I18n\Validator component requires the intl PHP extension

I am using PHP 5.5.9.

How can I install PHP-intl extension in a correct way ?

sudo apt-get install php-intl

then restart your server

For php5 on Ubuntu 14.04

sudo apt-get install php5-intl

For php7 on Ubuntu 16.04

sudo apt-get install php7.0-intl

For php7.2 on Ubuntu 18.04

sudo apt-get install php7.2-intl

Anyway restart your apache after

sudo service apache2 restart

IMPORTANT NOTE: Keep in mind that your php in your terminal/command line has NOTHING todo with the php used by the apache webserver!

If the extension is already installed you should try to enable it. Either in the php.ini file or from command line.

Syntax:

php:

phpenmod [mod name]

apache:

a2enmod [mod name]

you could search with aptitude search intl after you can choose the right one, for example sudo aptitude install php-intl and finally sudo service apache2 restart

good Luck!

For php 5.6 on ubuntu 16.04

sudo apt-get install php5.6-intl

In Ubuntu 20.04, PHP 7.4 use the following command:

sudo apt-get install php7.4-intl

replace 7.4 with your PHP version

May be universe repository is disabled, here is your package in it

Enable it

sudo add-apt-repository universe

Update

sudo apt-get update

And install

sudo apt-get install php5-intl

install it from terminal

sudo apt-get install php-intl