laravel validation not empty string code example

Example 1: laravel check if laravel query is empty

if ($result->first()) { } 
if (!$result->isEmpty()) { }
if ($result->count()) { }
if (count($result)) { }

Example 2: check if variable is set and not empty laravel

isset($vars[1]) AND !empty($vars[1]) is equivalent to !empty($vars[1]).