学院」的所有用户:
$users = User::whereHas('posts', function ($query) {
$query->where('title', 'like', 'Laravel...= User::whereHas('posts', function ($query) {
$query->where('title', 'like', 'Laravel学院%')...$query->where('title', 'like', 'Laravel学院%')
->orWhereExists(function ($query) {
$query...) {
$query->where('title', 'like', 'Laravel学院%');
})->whereHas('posts.comments', function ($query...>load(['comments' => function ($query) {
$query->where('content', 'like', 'Laravel学院%')
-