is_404() – Determines whether the query has resulted in a 404 (returns no results).

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Description

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

For more information on this and similar theme functions, check out the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ Conditional Tags} article in the Theme Developer Handbook.

Usage

$bool = is_404();

Parameters

Returns

bool Whether the query is a 404 error.

Source

File name: wordpress/wp-includes/query.php
Lines:

1 to 10 of 10
function is_404() {
  global $wp_query;

  if ( ! isset( $wp_query ) ) {
    _doing_it_wrong( is_404, __( '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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