Hi when I click on save or preview button of content type like page,book or any content type its giving me following lines on screen and not saving content.

stdClass Object ( [nid] => [vid] => [uid] => 1 [created] => 1311058760 [type] => page [language] => [changed] => [title] => [teaser_js] => [teaser_include] => 1 [body] => [format] => 1 [revision] => 0 [log] => [name] => mahesh [date] => [status] => 1 [promote] => 0 [sticky] => 0 [op] => Save [submit] => Save [preview] => Preview [form_build_id] => form-a5b5ec9669820454b2cdb1e8a53e0532 [form_token] => 0fe323211b35a1d436e0c507ba38c8da [form_id] => page_node_form [comment] => 0 [menu] => Array ( [mlid] => 0 [module] => menu [hidden] => 0 [has_children] => 0 [customized] => 0 [options] => Array ( ) [expanded] => 0 [parent_depth_limit] => 8 [link_title] => [parent] => primary-links:0 [weight] => 0 ) [path] => [og_description] => [og_selective] => 0 [og_register] => 0 [og_directory] => 1 [og_limit_max_users] => [og_menu] => 1 [signup_restrict] => Array ( [options] => Array ( [1] => 0 [2] => 0 [3] => 0 [4] => 0 [5] => 0 [7] => 0 ) ) [og_private] => 0 [notifications_content_disable] => 0 )

I tried clear cache and all the methods but in vain.Please help where i can do any changes through admin.