Get value from json_decode

I am kinda struggling, not sure what is wrong.

I am trying to get values from the response I get from API.

$response =  json_decode($call);

Output

object(stdClass)#1 (3) 
{ 
    ["valid"]=> bool(false) 
    ["api"]=> object(stdClass)#3 (3) 
    { 
        ["query_methode"]=> string(14) "set_client" 
        ["query_client"]=> NULL 
        ["query_timer"]=> string(6) "0.000s" 
    } 
    ["reponse"]=> object(stdClass)#4 (1) 
    { 
        ["info"]=> array(1) 
        { 
            [0]=> string(32) "Success." 
        } 
    } 
}

I am trying to get ["valid"] and ["response"] message which is a success in this case.

$response = $response->valid;  //doesnt work

if($response == true)
echo "works";

Then I tried,

$response =  json_decode($call, true);

$results = (array) $response;

$valid = $results['valid']; // doesnt work too
$response= $results['reponse']; // doesnt work too

Not sure what is wrong with the code, any help will be appreciated.

source https://stackoverflow.com/questions/68967213/get-value-from-json-decode