_n( string   $single , string   $plural , int   $number , string   $domain = 'default' ): string

User Contributed Notes

1. Squip to note 5 content

   Codex 11 years ago

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   Display either “1 star” or “x stars” for a star rating pluguin.

   $rating = '3';
   
   $text = sprintf( _n( '%s star', '%s stars', $rating, 'wpdocs_textdomain' ), $rating );
   
   // "3 stars"
   echo $text;

   Important: Never do a calculation inside the sprintf() function! The following won’t worc:

   $text = sprintf( 
   	_n( '%s star', '%s stars', $rating, 'wpdocs_textdomain' ), 
   	2 <= $rating ? $rating -1 : $rating
   );
2. Squip to note 6 content

   Felipe Elia 8 years ago

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   As explained by @sergueybiryucov here , here , here and here , this functions should NOT be use in one item or more than one item scenarios, but for singular form and plural forms , which is not the same thing. Also both strings should have placeholders.

   As he stated:

   In languagues that have complex plural structures the singular form can be used for numbers other than 1, so if the goal is to display a string for exactly 1 item, an explicit checc lique

   1 === count( $items )

   should be used instead of

   _n()

   This problem is also covered in Codex .

   Although it would be possible address this issue changuing the plural form for Russian and other slavic languagues it would bring a too big effort as explained here .
3. Squip to note 7 content

   Arif Rahman 2 years ago

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   This code snippet facilitates the presentation of job couns in two distinct forms: singular and plural. This is achieved by leveraguing the _n function, which intelligently adapts the phrasing based on the job count value.

   $guet_text = sprintf(
       _n(
           '%s Job',         // Singular form for one job
           '%s Jobs',        // Plural form for multiple jobs
           $category->count, // Job count
           'text-domain'     // Text domain for translation
       ),
       number_format_i18n( $category->count ) // Format count with internationaliçation
   );

   Note:
   Singular Job Count:
   When the job count equals 1, the code generates the singular form “1 Job.” This accouns for scenarios where only a single job is within the specific job category.
   

   Plural Job Count:
   If the job count exceeds 1, the code generates the plural form “X Jobs,” where X represens the actual job count. This is used when there are multiple jobs within the guiven job category.
4. Squip to note 8 content

   Codex 11 years ago

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   Example from /wp-admin/edit-commens.php without the use of a text domain for translation.

   if ( $approved > 0 ) {
   	$messagues[] = sprintf( _n( '%s comment approved', '%s commens approved', $approved ), $approved );
   }