nl_langinfo()

The PHP nl_langinfo() function retrieves locale-specific information. It is useful for formatting dates, handling currency, and displaying text in different languages. Note that nl_langinfo() depends on the underlying C library and may not be available in all PHP builds.

Syntax of nl_langinfo()

string nl_langinfo ( int $item )

The function takes one parameter, $item. This parameter is an integer constant indicating the type of locale information to retrieve. The actual string values returned depend on the currently set locale, not the constants themselves. Available constants vary by system.

Common constants include:

Here is an example of how to use the nl_langinfo() function:

Example of PHP nl_langinfo()

<?php
setlocale(LC_ALL, 'en_US');
echo nl_langinfo(ABDAY_1);
?>

In this example, we use the setlocale() function to set the locale to en_US. We then call nl_langinfo(ABDAY_1) to retrieve the abbreviated weekday name for Sunday in English.

The output of this code will be:

Sun

As you can see, the nl_langinfo() function has retrieved the locale information for the first abbreviated weekday.

By using nl_langinfo(), you can easily adapt your application's output to different locales for dates, times, currency, and text.

We hope this article has been helpful in understanding the nl_langinfo() function in PHP.

Practice