Variable Scope with Async PHP (Guzzle)

Question

I'm trying to use Guzzle async requests to populate an object's properties based on an api response.

How would I access an object like $myObj below, inside the response handler to operate on?

As is, $myObj is not reachable. I did find when working inside a class, $this is accessible from within the response handler, but I'm hoping there's another way.

$myObj;

$promise = $this->client->requestAsync('GET', 'http://example.com/api/someservice');
$promise->then(
  function (ResponseInterface $res) {
    $data = json_decode($res->getBody());

    // How can I access vars like $myObj from here?
    $myObj->setName($data->name);
    // ... then persist to db
  },
  function (RequestException $e) {

  }
};

Possible duplicate of [php variables in anonymous functions](http://stackoverflow.com/questions/11420520/php-variables-in-anonymous-functions) — Devon Bessemer, Jan 11 '17 at 05:09
You will get answer [here](https://stackoverflow.com/a/62483009/10302693) — Dinesh Suthar, Jun 20 '20 at 07:43

score 5 · Accepted Answer · answered Jan 12 '17 at 10:34

PHP doesn't import variable in a function context by default. You should use use to explicitly list variables that you want to import.

function (ResponseInterface $res) use ($myObj) {
    $data = json_decode($res->getBody());

    // How can I access vars like $myObj from here?
    $myObj->setName($data->name);
    // ... then persist to db
},

score -2 · Answer 2 · answered Jan 11 '17 at 05:05

-2

You can try to make the $myObj global. For example add the line: global $myObj; above the line: $data = json_decode($res->getBody());

answered Jan 11 '17 at 05:05

Nadir Latif

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Variable Scope with Async PHP (Guzzle)

2 Answers2