chunk in laravel code example

Example 1: wherein laravel

DB::table('user')->whereIn('id', [100,200])->get();

Example 2: how to return chunk data laravel

$count = 0;
DB::table('users')->chunk(200, function($users) use (&$count)
{
    Log::debug(count($users)); // will log the current iterations count
    $count = $count + count($users); // will write the total count to our method var
});
Log::debug($count); // will log the total count of records

Example 3: get data from model in chunks laravel

$data = Inspector::latest('id')
    ->select('id', 'firstname', 'status', 'state', 'phone')
    ->where('firstname', 'LIKE', '%' . $searchtext . '%')
    ->chunk(50, function($inspectors) {
        foreach ($inspectors as $inspector) {
            // apply some action to the chunked results here
        }
    });