is_404(): bool

Description

Return

bool

Whether the query is a 404 error.

Uses · 2

• _doing_it_wrong()Marks something as being incorrectly called.
• __()Retrieves the translation of $text.

Used by · 16

• WP::handle_404()Set the Headers for 404, if nothing is found for requested URL.
• get_body_class()Retrieves an array of the class names for the body element.
• maybe_redirect_404()Corrects 404 redirects when NOBLOGREDIRECT is defined.
• print_embed_comments_button()Prints the necessary markup for the embed comments button.
• print_embed_sharing_button()Prints the necessary markup for the embed sharing button.
• print_embed_sharing_dialog()Prints the necessary markup for the embed sharing dialog.
• redirect_canonical()Redirects incoming links to the proper URL based on the site url.
• render_block_core_breadcrumbs()Renders the `core/breadcrumbs` block on the server.
• twentyfourteen_wp_title()Creates a nicely formatted and more specific title element text for output in head of document, based on current view.
• twentythirteen_body_class()Extends the default WordPress body classes.
• twentythirteen_wp_title()Filters the page title.
• twentytwelve_wp_title()Filters the page title.

Source

View on Trac ↗View on GitHub ↗

878function is_404() {879	global $wp_query;880 881	if ( ! isset( $wp_query ) ) {882		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );883		return false;884	}885 886	return $wp_query->is_404();887}

History

Introduced in 1.5.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/query.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

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