Alert: This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness. Use wp_old_slug_redirect() instead.

_find_post_by_old_slug( string $post_type ): int

Find the post ID for redirecting an old slug.


Description

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See also


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Parameters

$post_type string Required
The current post type based on the query vars.

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Return

int The Post ID.


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Source

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

function _find_post_by_old_slug( $post_type ) {
	global $wpdb;

	$query = $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta, $wpdb->posts WHERE ID = post_id AND post_type = %s AND meta_key = '_wp_old_slug' AND meta_value = %s", $post_type, get_query_var( 'name' ) );

	// If year, monthnum, or day have been specified, make our query more precise
	// just in case there are multiple identical _wp_old_slug values.
	if ( get_query_var( 'year' ) ) {
		$query .= $wpdb->prepare( ' AND YEAR(post_date) = %d', get_query_var( 'year' ) );
	}
	if ( get_query_var( 'monthnum' ) ) {
		$query .= $wpdb->prepare( ' AND MONTH(post_date) = %d', get_query_var( 'monthnum' ) );
	}
	if ( get_query_var( 'day' ) ) {
		$query .= $wpdb->prepare( ' AND DAYOFMONTH(post_date) = %d', get_query_var( 'day' ) );
	}

	$id = (int) $wpdb->get_var( $query );

	return $id;
}


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Changelog

Changelog
Version Description
4.9.3 Introduced.

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