Drupal panic script (complete)

panic.php

#!/usr/bin/php
<?php

function panic_bootstrap_database($site_host = null, $incomming_host = null) {

    $_SERVER['REMOTE_ADDR'] = $incomming_host ? $incomming_host : '127.0.0.1';
    $_SERVER['HTTP_HOST'] = $site_host ? $site_host : '127.0.0.1';
    $_SERVER['SCRIPT_NAME'] = '/index.php';

    define('DRUPAL_ROOT', __DIR__ . '/../html');
    chdir(DRUPAL_ROOT);

    require_once DRUPAL_ROOT . '/includes/bootstrap.inc';
    require_once DRUPAL_ROOT . '/includes/database/database.inc';
    require_once DRUPAL_ROOT . '/includes/cache.inc';
    require_once DRUPAL_ROOT . '/includes/file.inc';
    require_once DRUPAL_ROOT . '/includes/module.inc';
    require_once DRUPAL_ROOT . '/includes/registry.inc';

    drupal_environment_initialize();
    drupal_settings_initialize();
    echo "working in ", conf_path(), "\n";
    // restore_error_handler();
    // restore_exception_handler();
    _drupal_bootstrap_database();
}

function panic_clear() {
    echo "forcefully clear some caches before anything\n";
    db_query("DELETE FROM {cache_bootstrap}");
    db_query("DELETE FROM {cache}");
    echo "drupal_static_reset()\n";
    drupal_static_reset();
}

function panic_registry() {

    echo "cache system enable attempt\n";
    if (!empty($conf['cache_backends'])) {
        foreach ($conf['cache_backends'] as $include) {
            echo "requiring ", $include, "\n";
            require_once DRUPAL_ROOT . '/' . $include;
        }
    }

    drupal_bootstrap(DRUPAL_BOOTSTRAP_VARIABLES);
    panic_clear();

    echo "system_rebuild_module_data()\n";
    require_once DRUPAL_ROOT . '/includes/common.inc';
    require_once DRUPAL_ROOT . '/modules/system/system.module';
    drupal_static_reset('system_rebuild_module_data');
    _system_rebuild_module_data();
    system_rebuild_module_data();

    echo "_registry_update()\n";
    db_query("DELETE FROM {registry_file}");
    db_query("DELETE FROM {registry}");
    _registry_update();

    echo "forcefully clear some caches\n";
    db_query("DELETE FROM {cache_bootstrap}");
    db_query("DELETE FROM {cache}");

    echo "all done\n";
}

panic_bootstrap_database(isset($argv[1]) ? $argv[1] : null, isset($argv[2]) ? $argv[2] : null);

if (basename($argv[0]) === basename(__FILE__)) {
    panic_registry();
}