if($status && $type) {
$users = User::where('status', $status)->where('type', $type)->latest()->get();
} else if ($status) {
$users = User::where('status', $status)->latest()->get();
} else if ($type) {
$users = User::where('status', $type)->latest()->get();
} else {
$users = User::latest()->get();
}
$query = User::query();
// 如果用DB: $query = DB::table('user');
if ($status) {
$query->where('status', $status);
}
if ($type) {
$query->where('type', $type);
}
$users = $query->latest()->get();
function foo($query) {
$query->with(['girl', 'gay'])
->latest()
->get();
}
$query = User::query();
$users = foo($query);
$query_1 = User::query();
$query_2 = clone $query_1;
$users_1 = $query_1->where('type', 1)->latest()->get();
$users_2 = $query_2->where('type', 2)->latest()->get();
// 错误 $users_2 = $query_1->where('type', 1)->latest()->get();
// 这样写得到得是type = 1 and $type = 2
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