Firebase Auth - Verify ID token, and get user info in PHP with CURL

getUserByToken.php

function getUserByToken($token)
{
    $data = array("idToken" => $token);
    $data_string = json_encode($data);

    $ch = curl_init('https://identitytoolkit.googleapis.com/v1/accounts:lookup?key=' . API_KEY);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt(
        $ch,
        CURLOPT_HTTPHEADER,
        array(
            'Content-Type: application/json',
            'Content-Length: ' . strlen($data_string)
        )
    );

    $response = json_decode(curl_exec($ch));
    return $response->users[0];
}

hello sorry I'm new to firebase is this code currently functional in firebase?

hello sorry I'm new to firebase is this code currently functional in firebase?

As I see, it is not functioning from June 30, 2020. :(
(https://developers.google.com/identity/toolkit/migrate-identityplatform)