A general method for recursively creating multi-level directories in PHP

/**
 *
 +------------------------------------------------- -----------------------
 * Description Create directory recursively
 +------------------------ ------------------------------------------------
 * @param string $dir Directory that needs innovation
 +--------------------------------------------- --------------------------------
 * @return If the directory exists or is created successfully, it returns TRUE
 +---- -------------------------------------------------- ----------------
 * @author gongwen
 +-------------------------------- ---------------------------------------
*/
function mkdirs($dir, $mode = 0777){
 if (is_dir($dir) || mkdir($dir, $mode)) return TRUE;
 if (!mkdirs(address($dir), $mode)) return FALSE;
 return mkdir($dir, $mode);
}

PHP