wp-includes/ms-blogs.php:41Gets a full site URL, given a site ID.
$blog_idintstringfunction get_blogaddress_by_id( $blog_id ) { $bloginfo = get_site( (int) $blog_id ); if ( empty( $bloginfo ) ) { return ''; } $scheme = parse_url( $bloginfo->home, PHP_URL_SCHEME ); $scheme = empty( $scheme ) ? 'http' : $scheme; return esc_url( $scheme . '://' . $bloginfo->domain . $bloginfo->path );}Introduced in MU (3.0.0). Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ms-blogs.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.