PHP cURL API problem with nested arrays and http_build

I am tearing my hair out a bit here (what's left of it).

Got cURL code working on terminal to change the forwarded phone number on an online SIP service (don't have access to the REST API server-side):

curl --request PUT --header "Accept: application/json" --header "Authorization: Basic abcdefABCDEFmysecretkey123456" -d '{"forwardings":[{"destination":" 447979123456","timeout":0,"active":true}]}' --header "Content-type: application/json" https://api.sipgate.com/v2/w0/phonelines/p0/forwardings

However my efforts to replicate this code in PHP are resulting in an {"error":"cannot parse content"} response:

$ch = curl_init();
$churl='https://api.sipgate.com/v2/w0/phonelines/p0/forwardings';
$chdata = array(
    'forwardings' => array(
        'destination' => ' 447979123456',
        'timeout' => 0,
        'active' => true
    )
);
$chdata2 = http_build_query($chdata);
curl_setopt($ch, CURLOPT_URL, $churl);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    "Content-type: application/json",
    "charset: utf-8",
    "Accept: application/json",
    "Authorization: Basic abcdefABCDEFmysecretkey123456"
));
curl_setopt($ch, CURLOPT_POSTFIELDS, $chdata2);
$json = curl_exec($ch);
echo $json;
curl_close($ch);

What am I missing?

CodePudding user response：

[from comments} I might be wrong, but I think json_encode does not properly handle nested arrays?

json_encode handles them fine, you simply did not provide the correct input data structure to begin with.

You are missing one array level in your data. 'forwardings' => array(...) needs to be 'forwardings' => array( array(...) )

BTW/FYI/for anyone who might ever need it: An easy way to get the data structure you need, already in form of usable PHP code, based on the existing JSON, would be a combination of var_export and json_decode:

var_export(json_decode('{"forwardings":[{"destination":" 447979123456","timeout":0,"active":true}]}', 1));

gets you the following result,

array (
  'forwardings' => 
  array (
    0 => 
    array (
      'destination' => ' 447979123456',
      'timeout' => 0,
      'active' => true,
    ),
  ),
)

So you can slap a $chdata = in front of that and a ; at the end, and done.

CodePudding user response：

Since the content-type is set to JSON, its expecting the data you pass to be json encoded.

Try replacing

$chdata2 = http_build_query($chdata);

With

$chdata2 = json_encode($chdata);

UPDATE with @CBroe comment

Change the $chdata array to be

$chdata = array(
    'forwardings' => array(
        array(
            'destination' => ' 447979123456',
            'timeout' => 0,
            'active' => true
        )
    )
);