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Locale Component

Locale provides fallback code to handle cases when the intl extension is missing.

Loading the fallback classes for example using the ClassLoader component only requires adding the following lines to your autoloader:

// intl
if (!function_exists('intl_get_error_code')) {
    require __DIR__.'/../vendor/symfony/src/Symfony/Component/Locale/Resources/stubs/functions.php';



You can run the unit tests with the following command:


If your PHP have the intl extension enabled but the intl extension ICU data version mismatch the one shipped with the component, you can build the data for it and use the USE_INTL_ICU_DATA_VERSION environment variable.

php Resources/data/build-data.php

This way the tests will use the ICU data files with the same version of your intl extension.

Read the file Resources/data/UPDATE.txt for more info about building or updating the ICU data files.

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