WordPress at a glance

is_year() WP 1.5.0

Determines whether a year archive page is shown (example.com/2009) — page with posts for a specific year. A conditional tag.

This function is a part of is_date() and is_archive() check, so if you use them together, you should use is_year() before those functions, otherwise is_year() condition will never occur.

Works based on: WP_Query::is_year()
✈ 1 time = 0.00007s = very fast | 50000 times = 0.01s = speed of light

No Hooks.

Return

true/false.

Usage

if( is_year() ){
	// ...
}

Examples

#1 Display text only on year archive pages

if( is_year() ){
	echo 'This is an archive page for year: for example, such link example.com/2009';
}

#2 Use of is_archive() and is_year() together in if/else statements

if( is_year() )
	echo 'This is an year archive page.';
elseif( is_archive() )
	echo 'An archive page: day, month, category, tag etc.';
else
	echo 'This is not an year archive page';

So is_archive() should follow is_year(), otherwise is_year() condition will never occur.

Code of is year: wp-includes/query.php WP 5.2.1

<?php
function is_year() {
	global $wp_query;

	if ( ! isset( $wp_query ) ) {
		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
		return false;
	}

	return $wp_query->is_year();
}

Related Functions

From tag: Conditional tags (page type and request)

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