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function is not described

_n_noop() WP 2.5.0

Registers plural strings in POT file, but does not translate them.

Used when you want to keep structures with translatable plural strings and use them later when the number is known.

Example:

$message = _n_noop( '%s post', '%s posts', 'text-domain' );
...
printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) );

This is an internal function for using it by WP core itself. It's not recommended to use this function in your code.

No Hooks.

Return

Array. Array of translation information for the strings.

Usage

_n_noop( $singular, $plural, $domain );
$singular(string) (required)
Singular form to be localized.
$plural(string) (required)
Plural form to be localized.
$domain(string)
Text domain. Unique identifier for retrieving translated strings.
Default: null

Changelog

Since 2.5.0 Introduced.

Code of _n_noop() WP 5.7.2

<?php
function _n_noop( $singular, $plural, $domain = null ) {
	return array(
		0          => $singular,
		1          => $plural,
		'singular' => $singular,
		'plural'   => $plural,
		'context'  => null,
		'domain'   => $domain,
	);
}