Cast string to integer in Laravel query

I'm building this query

$mostPopularContent = DB::table('likes')
            ->select('id', 'content_moderated.text', 'content_moderated.author', DB::raw('COUNT(*) AS `like`'))
            ->leftJoin('content_moderated', 'likes.id_quote', '=', 'content_moderated.id')
            ->where('likes.id_quote', '!=', 0)
            ->groupBy('likes.id_quote')
            ->orderBy('like', 'desc')
            ->take(100)
            ->get();

I have a JSON output like this

[
    {
        id: "24603",
        text: "Content",
        author: null,
        like: "34"
    }
]

How can I cast id and like fields to integer ?

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