My Little Scripts - directory-navigation-links.php

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DIRECTORY-NAVIGATION-LINKS.PHP

Do you have a website with a navigation system that follows its directory structure? If so, these functions can be just what you need. combined with my Absolute Include function, you can implement a navigation solution that requires very little maintenance.

directories() returns an array of directories: The one containing the script itself, and its parents. directory_navigation_links() calls directories() and uses the return value to create a navigation bar.

see also : directory-navigation-links.php, directory-navigation-links.asp
javascript-navigation-links.js, hotlink-protection.php
link-words.php, link-words.asp

<?
function directories()
         {
         $directory = $_SERVER["PHP_SELF"];

         $directories = array();

         $next_slash = 0;

         do {//Creates an array with all the parent folders
             //of the file where this function is called.
            $next_slash = strpos($directory, "/", $next_slash);

            if($next_slash !== false)
              {
              $next_slash++;
              $directories[count($directories)] = substr($directory, 0, $next_slash);
              }

            } while($next_slash !== false);

         return($directories);
         }

//Uses the directories() function to create the links.
function directory_navigation_links()
         {
         $directories = directories();

         $links = "";

         for($index = 0; $index < count($directories); $index++)
            {
            //Handling the display is a little harder than the links themselves.
            $dir_name = substr($directories[$index], 0, strlen($directories[$index]) - 1);

            $dir_name = substr($dir_name, strrpos($dir_name, "/") + 1, strlen($dir_name) - 1);

            if($dir_name == "") $dir_name = "home";

            $links .= "<a href=\"" . $directories[$index] . "\">" . $dir_name . "</a>  ";
            }

         return($links);
         }
?>