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  • GIL EG thinks this is interesting:

$category->books->attach( [4, 8, 15, 17, 22, 42] ); $category->books->detach([17, 22]); $category->books->attach([16, 23 => ['notes' => 'be careful next time...']]);

From

Cover of Learning Laravel's Eloquent

Note

multiple attach and detach