page_auth.php

<?php
    //These pages require a certain access level.
    $require_access = array(
        "/community/*" => 97,
        "/community/management/*" => 97,
        "/account/*" => 1,
        "/generate_missing_account_files.php" => 99
    );

    //Loop through the $required_access array looking for any keys that have the recursive symbol '*'.
    foreach($require_access as $key=>$value)
    {

        //Check if this key has the recursive symbol in it.
        $recursive_pos = strpos($key, "*");

        //If the key has a recursive symbol.
        if($recursive_pos!==false)
        {

            //Get the index of this key.
            $recursive_index = array_search($key, $require_access);

            //Remove the key from the array, because it's not in the proper format with the recursive key at the end.
            array_splice($require_access, $recursive_index, 1);

            $document_root = $_SERVER['DOCUMENT_ROOT'];
            $sub_dir = substr($key, 0, $recursive_pos);

            //Add the folder to the array.
            $require_access[$sub_dir] = $value;

            //Scan the directory that the key was refering to.
            $file_list = scandir($document_root.$sub_dir);
            foreach ($file_list as $file)
            {
                //If the folder has the name of '.', '..', or is a directory, skip it.
                if($file == "." || $file==".." || is_dir($document_root.$sub_dir.$file)) continue;

                //Add the file to the array.
                $require_access[$sub_dir.$file] = $value;
            }
        }
    }

    if(isset($require_access[$_SERVER['REQUEST_URI']]))
    {
        if(!isset($_SESSION["group_level"]))
        {
            $_SESSION["group_level"] = 0;
        }
        if($_SESSION["group_level"]<$require_access[$_SERVER['REQUEST_URI']])
        {
            include($_SERVER['DOCUMENT_ROOT'].'/includes/unauthorized.php');
            die();
        }
    }
?>