Change wordpress url in code, when there's no access to phpMyAdmin.

move_wordpress_blog.php

global $wpdb;

$query = "UPDATE $wpdb->posts SET post_content = REPLACE (
  post_content,
  'http://old.com',
  'http://new.com')";

$wpdb->query($query);

$query = "UPDATE $wpdb->posts SET guid = REPLACE (
  guid,
  'http://old.com',
  'http://new.com')";

$wpdb->query($query);