WordPress at a glance
function is not described

is_favicon() WP 5.4.0

Is the query for the favicon.ico file?

No Hooks.

Return

true/false. Whether the query is for the favicon.ico file.

Usage

is_favicon();

Notes

  • Global. WP_Query. $wp_query WordPress Query object.

Changelog

Since 5.4.0 Introduced.

Code of is_favicon() WP 5.5.1

<?php
function is_favicon() {
	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_favicon();
}