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The Internationalization extension (Intl) is a wrapper for the ICU library, a set of C/C++ and Java libraries that provide Unicode and Globalization support for software applications. It enables PHP programmers to perform UCA-conformant collation and date/time/number/currency formatting in their scripts.
To enable this extension add the following line to your php.ini file usually found in /php:
And then set the intl.default_locale and intl.error_level directives in your php.ini file.
[intl] intl.default_locale = en_utf8 intl.error_level = E_WARNING
The intl.error_level directive is optional.
In a WAMP installation it may be required to add the php path (e.g. C:\wamp\bin\php\php5.3.13 or C:\wamp\bin\php\php5.4.3) to the the system PATH so that the module4 could uploaded properly (see http://forum.wampserver.com/read.php?2,80704,82499 for a couple of other approaches).
Other operating systems
Use system package manager or specify compilation flag.
- Debian 5.0 (& Ubuntu) use: apt-get install php-intl or apt-get install php5-intl
- CentOS 5.5 (& RedHat) you should (probably) be using php 5.3 from remi and then use: yum install php-intl
- CentOS with php7 use : yum install php70-intl