<?php namespace Illuminate\Database\Eloquent\Factories; use Illuminate\Support\Arr; class CrossJoinSequence extends Sequence { /** * Create a new cross join sequence instance. * * @param array $sequences * @return void */ public function __construct(...$sequences) { $crossJoined = array_map( function ($a) { return array_merge(...$a); }, Arr::crossJoin(...$sequences), ); parent::__construct(...$crossJoined); } }