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)
Uses: WP_Query::is_date()
1 time — 0.00006 sec (very fast) | 50000 times — 0.02 sec (speed of light)
No Hooks.
Return
true|false. Whether the query is for an existing date archive.
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().
Notes
- Global. WP_Query. $wp_query WordPress Query object.
Code of is_date() is date WP 5.8.3
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();
}