is_date() WP 1.5.0

Determines whether the date archive page is displayed. Conditional tag.

This function is part of is_archive() check and contains in itself: is_day(), is_month(), is_year() and etc. (see example 2)

No Hooks.

Return

true/false.

Usage

is_date();

Examples

#1 Basic usage

if( is_date() )
	echo "It's an archive by date";
else
	echo "It's not an archive by date";

#2 What checks are included in is_date()

is_date() contains in itself functions is_day(), is_month(), is_year() and etc.

This example demonstrates how not to do:

if( is_date() )
	echo "It's an archive by date";
elseif( is_day() )
	echo "It's an archive by day";
else
	echo "This is something else";

In this example, the is_day() condition will never be met. It needs to be checked before is_date().

Code of is date: wp-includes/query.php ^{VER 5.1.1}

<?php
function is_date() {
	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_date();
}

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