Data Chunking for Large Datasets

Process large datasets efficiently by breaking them into manageable chunks to reduce memory consumption and improve performance.

The Problem: Memory Exhaustion

// BAD: Loading all records into memory
$users = User::all(); // Could be millions of records!

foreach ($users as $user) {
    $user->sendNewsletter();
}

// BAD: Even with select, still loads everything
$emails = User::pluck('email'); // Array of millions of emails

foreach ($emails as $email) {
    Mail::to($email)->send(new Newsletter());