# intersectKey方法 删除原集合中不存在于给定数组或集合中的任何键。 ``` $collection = collect([ 'serial' => 'UX301', 'type' => 'screen', 'year' => 2009 ]); $intersect = $collection->intersectKey([ 'reference' => 'UX404', 'type' => 'tab', 'year' => 2011 ]); $intersect->all(); // ['type' => 'screen', 'year' => 2009] ```