$data_json = json_encode($data_json);
$cha = curl_init();
curl_setopt($cha, CURLOPT_URL, $url);
curl_setopt($cha, CURLOPT_POST, true);
curl_setopt($cha, CURLOPT_POSTFIELDS, $data_json);
curl_setopt(
    $cha,
    CURLOPT_HTTPHEADER,
    array(
        "Content-Type: application/json",
        "Authorization: Bearer ".$accessToken,
        "Content-length: " . strlen($data_json),
        "Host: graph.microsoft.com",
    )
);
curl_setopt($cha, CURLOPT_FAILONERROR, true);
curl_setopt($cha, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($cha);

if(curl_exec($cha) === false)
{
    echo 'Curl error: ' . curl_error($cha);
}
else
{
    echo 'Operation completed without any errors';
}