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includes_url( string $path = '', string $scheme = null )

Retrieves the URL to the includes directory.

Parameters

$path

(string) (Optional) Path relative to the includes URL.

Default value: ''

$scheme

(string) (Optional) Scheme to give the includes URL context. Accepts 'http', 'https', or 'relative'.

Default value: null

Return

(string) Includes URL link with optional path appended.

Source

File: wp-includes/link-template.php

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
	 *
	 * @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.
	 */
	return apply_filters( 'includes_url', $url, $path );
}

Changelog

Version Description
2.6.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/includes_url