php - Laravel 5.0 eloquent not adding timestamps for created_at and updted_at -

i having code in controller

foreach($blogtags $blogtagsdata)        {             $data[] = array(           'blog_id' => $postblog->id,           'user_id' => '1',             'tag_id' => $blogtagsdata[0]);        }       blogtag::insert($data); 

where $blogtags have 1,2,3 that.

but when insert not inserting timestamps in created_at field , updated_at field..

even have inside model

public $timestamps = true;

what mistake doing,,,

is doing following way option ?

$data['created_at']= \carbon\carbon::now()->todatetimestring(); $data['updated_at']= \carbon\carbon::now()->todatetimestring(); 

or there better way include laravel default timestamp insertion ..

try

foreach ($blogtags $blogtagsdata) {     blogtag::create([         'blog_id' => $postblog->id,         'user_id' => '1',         'tag_id' => $blogtagsdata[0]     ]); }