laravel5/vendor/qiniu/php-sdk/examples/sms/sms_create_signature.php

<?php
require_once __DIR__ . '/../../autoload.php';

use Qiniu\Auth;
use Qiniu\Sms\Sms;

// 控制台获取密钥：https://portal.qiniu.com/user/key
$accessKey = getenv('QINIU_ACCESS_KEY');
$secretKey = getenv('QINIU_SECRET_KEY');

$auth = new Auth($accessKey, $secretKey);
$client = new Sms($auth);

// 创建签名
// 参考文档：https://developer.qiniu.com/sms/api/5844/sms-api-create-signature
// 签名审核标准：https://developer.qiniu.com/sms/manual/5816/signature-specification

$signature = 'xxxx'; // 签名
$source = 'website'; // 签名来源，申请签名时必须指定签名来源
$pics = '../php-logo.png'; // 签名对应的资质证明图片

list($ret, $err)  = $client->createSignature($signature, $source, $pics);

echo "\n====> create signature result: \n";
if ($err !== null) {
    var_dump($err);
} else {
    var_dump($ret);
}