laravel find duplicates columns in collection code example

Example 1: laravel eloquent duplicate record

// Retrieve the first task
$task = Task::first();

$newTask = $task->replicate();
$newTask->project_id = 16; // the new project_id
$newTask->save();

Example 2: laravel collection find duplicates

$users = Users::all();
$usersUnique = $users->unique('id');
$usersDupes = $users->diff($usersUnique);

dd($users, $usersUnique, $usersDupes);