Laravel 4 how check if a route only comes/redirected from another route?

问题

Say i have localhost/public/admin that redirects immediately to localhost/public/user/login.

How am I going to get the admin value in user/login?

回答1:

You'll need to grab the referer and check if it is contains 'admin'. Try the following

$referer = Request::referer();
// or
// $referer = Request::server('HTTP_REFERER');

if (strpos($referer,'admin') !== false) {
    dd('coming from admin')
}

Edit #1: As pointed out by @tomvo you can also use URL::previous() instead of Request::referer() in L4

Edit #2: It's actually mispelled as referer instead of referrer as point out by @JamesF

Edit #3: In Laravel 5 the Request::referer() method doesn't seem to exist anymore, you can still get it by using Request::header('referer') as point out by @TheSerenin

来源：https://stackoverflow.com/questions/23195987/laravel-4-how-check-if-a-route-only-comes-redirected-from-another-route