在 HHVM 上用 PHP 请求参数

Question

I'm running HHVM 3.2.0 and trying to get access to GET and POST request parameters. The problem is, HHVM doesn't support access to PHP superglobals ( $_GET , $_POST , $_SERVER , etc).

The only other way I know of getting access to request parameters in PHP is via the filter_input function, but is that really best practice (if I'm just using the raw filter)? It seems as though HHVM should support something cleaner than that. (What about Hack?)

Answer 1

HHVM absolutely supports superglobals in PHP code -- they're a really key part of PHP! The docs page you've linked to is simply wrong, and I've filed a bug to get it fixed .

In strict mode Hack code, superglobals are not supported; this cookbook example shows how you can access them via partial mode.

Answer 2

Seems like they added HH\\global_get() to get global variables.

https://docs.hhvm.com/hack/reference/function/HH.global_get/

To put everything together

use namespace \Facebook\TypeSpec;

// get $_GET using global_get
function global_get_get(): darray<arraykey, mixed> {
  $spec = TypeSpec\darray(
    TypeSpec\arraykey(),
    TypeSpec\mixed(),
  );
  return $spec->assertType(\HH\global_get("_GET"));
}