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Description

This Conditional Tag checks if 404 error is being displayed (after an "HTTP 404: Not Found" error occurs). This is a boolean function, meaning it returns either TRUE or FALSE.

Usage

<?php is_404(); ?>

Parameters

This tag does not accept any parameters.

Return Values

(boolean) 

True on success, false on failure.

Examples


<?php
if ( is_404() ) {
    // add search form so that users can search other posts
}
?>


Notes

Change Log

Since: 1.5.0

Source File

is_404() is located in wp-includes/query.php.

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