is_404(): bool

Determines whether the query has resulted in a 404 (returns no results).

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Description

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

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Return

bool Whether the query is a 404 error.

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Source

File: wp-includes/query.php. View all references

function is_404() {
	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_404();
}

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Uses

Uses
Uses	Description
WP_Query::is_404() wp-includes/class-wp-query.php	Is the query a 404 (returns no results)?
__() wp-includes/l10n.php	Retrieve the translation of $text.
_doing_it_wrong() wp-includes/functions.php	Mark something as being incorrectly called.

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Used By

Used By
Used By	Description
print_embed_comments_button() wp-includes/embed.php	Prints the necessary markup for the embed comments button.
print_embed_sharing_button() wp-includes/embed.php	Prints the necessary markup for the embed sharing button.
print_embed_sharing_dialog() wp-includes/embed.php	Prints the necessary markup for the embed sharing dialog.
wp_get_document_title() wp-includes/general-template.php	Returns document title for the current page.
wp_title() wp-includes/general-template.php	Display or retrieve page title for all areas of blog.
WP::handle_404() wp-includes/class-wp.php	Set the Headers for 404, if nothing is found for requested URL.
wp_old_slug_redirect() wp-includes/query.php	Redirect old slugs to the correct permalink.
get_body_class() wp-includes/post-template.php	Retrieves an array of the class names for the body element.
redirect_canonical() wp-includes/canonical.php	Redirects incoming links to the proper URL based on the site url.
wp_redirect_admin_locations() wp-includes/canonical.php	Redirects a variety of shorthand URLs to the admin.
maybe_redirect_404() wp-includes/ms-functions.php	Corrects 404 redirects when NOBLOGREDIRECT is defined.