Object of class stdClass could not be converted to string

[eluser]Unknown[/eluser]
array([0]=> stdClass Object ([id]=>1 [title]=>sabbir [content]=>My name is sabbir [date]=>2011-01-29))

A php error was encountered
massage: Object of class stdClass could not be converted to string

Code:
controller:
$data['query'] = $this->blog_model->get_blog();
$this->load->view('blogview',$data);
view:
<?php foreach($query as $value)
echo $value;
endforeach;
?>

there is no fetching problem.first line indicate that.