PHP Symfony 3 - POST variables unavailable in controller

Question

I am trying to consume a JSON string built with the JS function JSON.stringify(objects). On my working local version, it is working, but on the server it raises the following error:

invalid argument supplied for foreach

After some investigations, the $POST table is empty. But in the browser console, the data is sent with the query.

Here is the content of the request:

rencontres:[{"id":"1","m":"","f":"0-2","e":"","p":"","status":"3","st":false,"si":false,"se":false,"sp":false,"ss":false}]

Here is the JSON string contained in $GET['rencontres'] (accessed by $request->get("rencontres")):

[{"id":"1","m":"","f":"0-2","e":"","p":"","status":"3","st":false,"si":false,"se":false,"sp":false,"ss":false}]

which seems correct.

Here some var_dump results: var_dump($renontres) gives [][]

var_dump($request->get("rencontres") gives also [][]

here is the method itself:

public function postSaveRencontre(Request $request){
    $em = $this->getDoctrine()->getManager();
    $rencontres = json_decode($request->get("rencontres"), true);
    //log struff
    foreach ($rencontres as $key => $r) {
        //blablabla
    }
    //return statement
}

and here the AJAX statement (url is correct):

$.ajax({
    type: "POST",
    url:"url",
    data: {rencontres:JSON.stringify(rencontres)},
    success:function(data){
        console.log("save performed");
    }
});

Dump the variable `$rencontres` before your `foreach()`-statement. Also try to remove `stripcslashes()`. — M. Eriksson, Jan 25 '17 at 13:33
run `var_dump($request->get("rencontres"))` what does that give you? — CodeGodie, Jan 25 '17 at 13:34
What's the PHP version on your shared hosting? Also is JSON enabled? (I know it's compiled in by default but it's theoretically possible to have had PHP installed with JSON not enabled). — apokryfos, Jan 25 '17 at 13:40
are you using a framework? where are you getting `$request` from? — CodeGodie, Jan 25 '17 at 13:45
Are you looking at the result of `var_dump()` on the actual page or through the browsers console? — M. Eriksson, Jan 25 '17 at 13:51
Are you passing the `$request` as a parameter of your method? Show your entire Symfony controller's method so that we can dissect it better. — CodeGodie, Jan 25 '17 at 13:54
@CodeGodie I works in my local Mamp version... which is exactly the same... Still, let me try on the server :) — user2316991, Jan 25 '17 at 14:09
did you clear your Symfony cache? `php bin/console cache:clear --env=prod` — CodeGodie, Jan 25 '17 at 14:11
In that method, what if you do a straight PHP $_GET to test if youre actually able to catch those requests, so do `var_dump($_GET['rencontres']);` and let me know what you get — CodeGodie, Jan 25 '17 at 14:19
array(1) { [0]=> array(11) { ["id"]=> string(1) "1" ["m"]=> string(0) "" ["f"]=> string(3) "0-2" ["e"]=> string(0) "" ["p"]=> string(0) "" ["status"]=> string(1) "3" ["st"]=> bool(false) ["si"]=> bool(false) ["se"]=> bool(false) ["sp"]=> bool(false) ["ss"]=> bool(false) } — user2316991, Jan 25 '17 at 14:26
Yes the problem is that the post variables are not passed in the query... But in the browser console the content is well present... — user2316991, Jan 25 '17 at 15:12

score 0 · Answer 1 · answered Jan 25 '17 at 15:53

0

Hi I Think that i get the same problem in my application
the cause of this problem is that ajax send data as content-type application/json on post
to Fix this poblem you have to add this code to your Action

$data = json_decode($request->getContent(), true);
$request->request->replace($data);
dump($request->request->get("rencontres"))

you have to add this ligne to all your Action that has POST
or Think to create a service to transform Your Json request

answered Jan 25 '17 at 15:53

Barkati.med

620
5
11

It says Argument 1 passed to Symfony\Component\HttpFoundation\ParameterBag::replace() must be of the type array, null given. $request->getContent() seems to be null... which is wired – user2316991 Jan 25 '17 at 16:00
if you inspect the network do you see the data in Request Payload – Barkati.med Jan 25 '17 at 16:11
Normaly if you dump $request->getContent(); you have to see your data in json format – Barkati.med Jan 25 '17 at 16:35

PHP Symfony 3 - POST variables unavailable in controller

1 Answers1