Sindbad~EG File Manager

<?php
//    ini_set('memory_limit','9999999');
    $server_cache = 7200;
    $cache_dir = '/var/www/html-cms-saraya-com/powercms/plugins/PowerCMS/cache/';
    // for windows
    if ((stristr(PHP_OS, 'win')) && (PHP_OS != 'Darwin')) {
        $cache_dir = str_replace('/', '\\', $cache_dir);
    }
    include('/var/www/html-cms-saraya-com/powercms/php/mt.php');
    $mt = new MT(90, '/var/www/html-cms-saraya-com/powercms/mt-config.cgi');
    $pattern = '/(dynamic\/search\.html|dynamic\/feed\.xml)\?/';
    $request = $_SERVER['REQUEST_URI'];
    if (preg_match($pattern, $request)) {
        $search = true;
        //check own cache
        $path = $request;
        $path = md5($path);
        $cache = $cache_dir . $path;
        if (file_exists($cache)) {
            $mtime = filemtime($cache);
            if ((time() - $mtime) > $server_cache) {
                unlink($cache);
                $match = 0;
            } else {
                header( "Last-Modified: " . gmdate( "D, d M Y H:i:s", $mtime ) . ' GMT' );
                $match = 1;
            }
        } else {
            $match = 0;
        }
        if ($match) {
            if (!($fcache = fopen($cache, 'r'))) {
                $match = 0;
            } else {
//                 $rec = file($cache);
//                 foreach ($rec as $line) {
//                     echo "$line\n";
//                 }
//                 return;
                $fp = fopen( $cache, "r" );
                while ( !feof( $fp ) ) {
                echo fread( $fp, 8192 );
                }
                fclose($fp);
                exit();
            }
        }
    }
    $tracking = '/(dynamic\/tracking\.html|dynamic\/search_tracking\.html)\?/';
    if (! preg_match($tracking, $request)) {
        if (! $search ) {
            $mt->caching = true;
            $mt->conditional = true;
        }
    } else {
        $search = false;
    }  
    ob_start();
        $mt->view();
        $output = ob_get_contents();
    ob_end_clean();
    $ctime = time();
    header( "Last-Modified: " . gmdate( "D, d M Y H:i:s", $ctime ) . ' GMT' );
    echo $output;
    if ($search) {
        //save own cache
        if (!($match)) {
            if (!($fh = fopen($cache, 'w'))) {
                return;
            }
            fwrite($fh, $output, 128000);
            fclose($fh);
            touch ($cache, $ctime);
        }
    }
?>