Internationalization and localization of PHP functions

PHP provides I18N/L10N functions to implement multi-language support, including: gettext(): Get translated text. setlocale(): Set the locale. lc* function: perform locale-related operations. strftime(): Format date and time, using locale setting format.

Internationalization and localization of PHP functions

Internationalization (I18N) and localization (L10N) are in the application processes for handling different languages ​​and locales. PHP provides many functions that can help you implement multi-language support for your application.

gettext function

gettext() function is one of the most commonly used functions in internationalization. It converts a text string to its translated version if one exists.

<?php
$text = gettext("Hello, world!");
echo $text; // 输出："你好，世界！"
?>

To use gettext(), you need to create a locale file that contains the text string and its translation.

setlocale function

setlocale() Function sets the current locale.

<?php
// 设置语言环境为中文
setlocale(LC_ALL, 'zh_CN');
?>

lc* Functions

PHP provides a series of lc* functions that can perform locale-related operations:

• lcfirst() Lowercase the first letter of the string
• lctranslate() Convert the string to uppercase or lowercase
• ##lcwords( ) Capitalize the first letter of each word in a string

strftime() The function formats dates and times. It uses locale settings to determine the format of dates and times.

<?php
// 输出当前日期，格式为中文
echo strftime("%Y-%m-%d %H:%M:%S", time());
?>

<?php
echo "Hello, world!";
?>

Create a locale directory (
1. lang).
Create language files in the
2. lang directory, such as en.po and zh_CN.po.
Add text strings and their translations in these files.
Modify the application code to use the
4. gettext() function:

<?php
$text = gettext("Hello, world!");
echo $text;
?>

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Run the application and set a different locale, for example:

LC_ALL=en php app.php

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This will display the English version of the text

"Hello, world!".

By using PHP's internationalization and localization functions, you can easily create multilingual applications that can run in different languages ​​and locale settings.

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