PHP, simply REST API caller function

call-api.php

/**
 * Call an API
 *
 * @param  string  $method HTTP verb: POST, PUT, GET etc
 * @param  stinrg  $url    URL
 * @param  boolean $data   Plunk the data tot he URL: array("param" => "value") ==> index.php?param=value
 * @return request         Whatever the API returns
 */
function n26_call_api($method, $url, $data = false) {
    $curl = curl_init();

    switch ($method) {
        case "POST":
            curl_setopt($curl, CURLOPT_POST, 1);
            if ($data) {
                curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
            }
            break;
        case "PUT":
            curl_setopt($curl, CURLOPT_PUT, 1);
            break;
        default:
            if ($data) {
                $url = sprintf("%s?%s", $url, http_build_query($data));
            }
    }

    // Optional Authentication:
    curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
    curl_setopt($curl, CURLOPT_USERPWD, "username:password");
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    $result = curl_exec($curl);
    curl_close($curl);
    return $result;
}