Laravel collection intersect

$collection = collect(['Desk', 'Sofa', 'Chair']);

$intersect = $collection->intersect(['Desk', 'Chair', 'Bookcase']);

$intersect->all();

// [0 => 'Desk', 2 => 'Chair']

Source: laravel.com

Laravel collection intersectKey

$collection = collect([
    'serial' => 'UX301', 'type' => 'screen', 'year' => 2009
]);

$intersect = $collection->intersectKey([
    'reference' => 'UX404', 'type' => 'tab', 'year' => 2011
]);

$intersect->all();

// ['type' => 'screen', 'year' => 2009]

Source: laravel.com

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