What is WordPress Hook: number_format_i18n

The number_format_i18n hook is a WordPress filter that allows developers to modify the formatted internationalized number based on the locale.

Understanding the Hook: number_format_i18n

The number_format_i18n hook is located within the number_format_i18n() function in the WordPress core. This function is responsible for formatting numbers based on the user’s locale settings.

Hook Parameters (if applicable): number_format_i18n

The number_format_i18n hook accepts three parameters: the formatted number, the number of decimal points, and the decimal separator. Developers can modify these parameters to customize the formatting of internationalized numbers.

Hook Doesn’t Work: number_format_i18n

If the number_format_i18n hook doesn’t work as expected, it may be due to conflicts with other plugins or themes that also modify number formatting. To troubleshoot, developers should deactivate other plugins and switch to a default theme to isolate the issue.

Best Practices & Usage Notes (if applicable): number_format_i18n

When using the number_format_i18n hook, developers should be mindful of the impact on user experience, as number formatting plays a crucial role in displaying monetary values and other numerical data. It’s important to test the modified formatting across different locales to ensure consistency and accuracy.

number_format_i18n Usage Example: number_format_i18n

“`php
add_filter( ‘number_format_i18n’, ‘custom_number_format_i18n’, 10, 3 );

function custom_number_format_i18n( $formatted, $number, $decimals ) {
// Custom number formatting logic here
return $formatted;
}
“`