Internationalization library in PHP8.0

Internationalization library in PHP8.0: Unicode CLDR and Intl extension

With the process of globalization, the development of cross-language and cross-region applications has become more and more common. Internationalization is an important part of achieving this goal. In PHP 8.0, Unicode CLDR and Intl extensions were introduced, both of which provide developers with better internationalization support.

Unicode CLDR
Unicode CLDR (Common Locale Data Repository) is an important data resource library in internationalization. It contains a large amount of localized data in various languages, including time, currency, numbers, dates, geography and other information, and can meet the needs of different languages ​​and cultures. In PHP 8.0, Unicode CLDR was introduced as a built-in component, and developers can easily use the data it provides.

How to use Unicode CLDR in PHP 8.0?
The main function of Unicode CLDR is to provide localized data. In order to use its data, you first need to install the ICU (International Components for Unicode) extension. ICU is a dependent component of Unicode CLDR. If you want to use its data, you must first install ICU. After installing ICU, you can use PHP's Intl extension to load the Unicode CLDR.

The following is a simple example that demonstrates how to use Unicode CLDR to parse date formats in PHP:

<?php
$formatter = new IntlDateFormatter(
    "en_US",
    IntlDateFormatter::SHORT,
    IntlDateFormatter::NONE,
    "America/Los_Angeles",
    IntlDateFormatter::GREGORIAN,
    "MMMM d, yyyy"
);
echo $formatter->format(time());
?>

In the above code, we create an IntlDateFormatter instance and set the Los Angeles time zone The short date format below. When the format() method is called, the instance converts the timestamp into a human-readable date string according to the set date format.

Intl extension
Intl extension is another important component in PHP. It provides many international functions and classes, including character encoding conversion, text domain name resolution, Unicode string operations, calendar, currency, Digital support. Using the Intl extension, developers can easily handle data in different languages ​​and cultural environments.

The following is a simple example demonstrating how to use the Intl extension to parse currency format:

<?php
$formatter = new NumberFormatter("en_US", NumberFormatter::CURRENCY);
echo $formatter->formatCurrency(123.45, "USD");
?>

In the above code, we create a currency formatting object and set the formatting mode to "currency". When the formatCurrency() method is called, the object converts the number into a currency string according to the set currency format.

In addition to currency formatting, the Intl extension also provides many other functions, such as character encoding conversion, Unicode string normalization, text domain name resolution, etc.

Using Unicode CLDR and Intl extensions can make developers more convenient and efficient when processing cross-cultural and multi-language data. They provide PHP developers with a more complete and powerful international support system.

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