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_wp_upload_dir() WP 4.5.0

A non-filtered, non-cached version of wp_upload_dir() that doesn't check the path.

This is an internal function for using it by WP core itself. It's not recommended to use this function in your code.

No Hooks.

Return

Array. See wp_upload_dir()

Usage

_wp_upload_dir( $time );
$time(string)
Time formatted in 'yyyy/mm'.
Default: null

Changelog

Since 4.5.0 Introduced.

Code of _wp_upload_dir() WP 5.8.1

function _wp_upload_dir( $time = null ) {
	$siteurl     = get_option( 'siteurl' );
	$upload_path = trim( get_option( 'upload_path' ) );

	if ( empty( $upload_path ) || 'wp-content/uploads' === $upload_path ) {
		$dir = WP_CONTENT_DIR . '/uploads';
	} elseif ( 0 !== strpos( $upload_path, ABSPATH ) ) {
		// $dir is absolute, $upload_path is (maybe) relative to ABSPATH.
		$dir = path_join( ABSPATH, $upload_path );
	} else {
		$dir = $upload_path;
	}

	$url = get_option( 'upload_url_path' );
	if ( ! $url ) {
		if ( empty( $upload_path ) || ( 'wp-content/uploads' === $upload_path ) || ( $upload_path == $dir ) ) {
			$url = WP_CONTENT_URL . '/uploads';
		} else {
			$url = trailingslashit( $siteurl ) . $upload_path;
		}
	}

	/*
	 * Honor the value of UPLOADS. This happens as long as ms-files rewriting is disabled.
	 * We also sometimes obey UPLOADS when rewriting is enabled -- see the next block.
	 */
	if ( defined( 'UPLOADS' ) && ! ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) ) {
		$dir = ABSPATH . UPLOADS;
		$url = trailingslashit( $siteurl ) . UPLOADS;
	}

	// If multisite (and if not the main site in a post-MU network).
	if ( is_multisite() && ! ( is_main_network() && is_main_site() && defined( 'MULTISITE' ) ) ) {

		if ( ! get_site_option( 'ms_files_rewriting' ) ) {
			/*
			 * If ms-files rewriting is disabled (networks created post-3.5), it is fairly
			 * straightforward: Append sites/%d if we're not on the main site (for post-MU
			 * networks). (The extra directory prevents a four-digit ID from conflicting with
			 * a year-based directory for the main site. But if a MU-era network has disabled
			 * ms-files rewriting manually, they don't need the extra directory, as they never
			 * had wp-content/uploads for the main site.)
			 */

			if ( defined( 'MULTISITE' ) ) {
				$ms_dir = '/sites/' . get_current_blog_id();
			} else {
				$ms_dir = '/' . get_current_blog_id();
			}

			$dir .= $ms_dir;
			$url .= $ms_dir;

		} elseif ( defined( 'UPLOADS' ) && ! ms_is_switched() ) {
			/*
			 * Handle the old-form ms-files.php rewriting if the network still has that enabled.
			 * When ms-files rewriting is enabled, then we only listen to UPLOADS when:
			 * 1) We are not on the main site in a post-MU network, as wp-content/uploads is used
			 *    there, and
			 * 2) We are not switched, as ms_upload_constants() hardcodes these constants to reflect
			 *    the original blog ID.
			 *
			 * Rather than UPLOADS, we actually use BLOGUPLOADDIR if it is set, as it is absolute.
			 * (And it will be set, see ms_upload_constants().) Otherwise, UPLOADS can be used, as
			 * as it is relative to ABSPATH. For the final piece: when UPLOADS is used with ms-files
			 * rewriting in multisite, the resulting URL is /files. (#WP22702 for background.)
			 */

			if ( defined( 'BLOGUPLOADDIR' ) ) {
				$dir = untrailingslashit( BLOGUPLOADDIR );
			} else {
				$dir = ABSPATH . UPLOADS;
			}
			$url = trailingslashit( $siteurl ) . 'files';
		}
	}

	$basedir = $dir;
	$baseurl = $url;

	$subdir = '';
	if ( get_option( 'uploads_use_yearmonth_folders' ) ) {
		// Generate the yearly and monthly directories.
		if ( ! $time ) {
			$time = current_time( 'mysql' );
		}
		$y      = substr( $time, 0, 4 );
		$m      = substr( $time, 5, 2 );
		$subdir = "/$y/$m";
	}

	$dir .= $subdir;
	$url .= $subdir;

	return array(
		'path'    => $dir,
		'url'     => $url,
		'subdir'  => $subdir,
		'basedir' => $basedir,
		'baseurl' => $baseurl,
		'error'   => false,
	);
}