wp-includes/link-template.php:3621Retrieves the URL to the includes directory.
$pathstringoptional''$schemestring|nulloptionalnullstringOne hook fires while includes_url() runs, in this order:
Filters the URL to the includes directory.
function includes_url( $path = '', $scheme = null ) { $url = site_url( '/' . WPINC . '/', $scheme ); if ( $path && is_string( $path ) ) { $url .= ltrim( $path, '/' ); } /** * Filters the URL to the includes directory. * * @since 2.8.0 * @since 5.8.0 The `$scheme` parameter was added. * * @param string $url The complete URL to the includes directory including scheme and path. * @param string $path Path relative to the URL to the wp-includes directory. Blank string * if no path is specified. * @param string|null $scheme Scheme to give the includes URL context. Accepts * 'http', 'https', 'relative', or null. Default null. */ return apply_filters( 'includes_url', $url, $path, $scheme );}Introduced in 2.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/link-template.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.