php 实现自动发短信

"code" => mt_rand(100000, 999999)  // 短信模板中的替换参数，这里使用PHP内置函数mt_rand()生成一个6位验证码

$params = array ();

// *** 需用户填写部分 ***
// fixme 必填: 短信接收号码
$params["PhoneNumbers"] = $phoneNumbers;
// fixme 必填: 短信签名-可在短信控制台中找到
$params["SignName"] = $signName;
// fixme 必填: 短信模板-可在短信控制台中找到
$params["TemplateCode"] = $templateCode;
// fixme 可选: 模板中的变量替换JSON串
if ($templateParam) {
    $params["TemplateParam"] = json_encode($templateParam);
}

// *** 需用户填写部分结束, 以下代码若无必要无需更改 ***
if (!empty($params["TemplateParam"]) && is_array($params["TemplateParam"])) {
    $params["TemplateParam"] = json_encode($params["TemplateParam"], JSON_UNESCAPED_UNICODE);
}

// 初始化SignatureHelper实例用于设置参数，签名以及发送请求
$helper = new SignatureHelper();

try {
    $content = $helper->request(
                    $accessKeyId,
                    $accessKeySecret,
                    "dysmsapi.aliyuncs.com",
                    array_merge($params, array(
                        "RegionId" => "cn-hangzhou",
                        "Action" => "SendSms",
                        "Version" => "2017-05-25",
                    ))
                );
    return $content;
} catch (Exception $e) {
    return false;
}

/**
 * 生成签名并发起请求
 *
 * @param string $accessKeyId
 *            您的Access Key ID
 * @param string $accessKeySecret
 *            您的Access Key Secret
 * @param string $domain
 *            API接口所在域名
 * @param array $params
 *            参数结构
 * @param string $method
 *            请求方式，GET或POST
 * @return bool|\mixed 服务器返回的数据，失败返回false
 */
public function request($accessKeyId, $accessKeySecret, $domain, $params, $method = 'POST')
{
    $apiParams = array ();
    foreach ($params as $key => $value) {
        $apiParams[$key] = $value;
    }

    // 添加公共请求参数
    $apiParams["SignatureMethod"] = "HMAC-SHA1";
    $apiParams["SignatureNonce"] = uniqid(mt_rand(0, 0xffff), true);
    $apiParams["SignatureVersion"] = "1.0";
    $apiParams["AccessKeyId"] = $accessKeyId;
    $apiParams["Timestamp"] = gmdate("Y-m-d\TH:i:s\Z");
    $apiParams["Format"] = "JSON";

    // 计算签名并拼接请求参数
    ksort($apiParams);
    $canonicalizedQueryString = '';
    foreach ($apiParams as $key => $value) {
        $canonicalizedQueryString .= '&' . $this->percentEncode($key) . '=' . $this->percentEncode($value);
    }
    $stringToSign = $method . '&%2F&' . $this->percentEncode(substr($canonicalizedQueryString, 1));
    $signature = base64_encode(hash_hmac('sha1', $stringToSign, $accessKeySecret . '&', true));
    $apiParams["Signature"] = $signature;

    // 发送请求
    $url = 'http://' . $domain . '/?' . http_build_query($apiParams);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $content = curl_exec($ch);
    curl_close($ch);
    return $content;
}

/**
 * 生成规范化请求字符串
 *
 * @param array $params
 *            请求参数
 * @return string
 */
private function getCanonicalizedQueryString(array $params)
{
    ksort($params);

    $canonicalizedQueryString = '';
    foreach ($params as $key => $value) {
        $canonicalizedQueryString .= '&' . $this->percentEncode($key) . '=' . $this->percentEncode($value);
    }

    return substr($canonicalizedQueryString, 1);
}

/**
 * 生成规范化请求
 *
 * @param array $params
 *            请求参数
 * @return string
 */
private function getCanonicalizedHeaders(array $params)
{
    ksort($params);

    $canonicalizedHeaders = '';
    foreach ($params as $key => $value) {
        $canonicalizedHeaders .= $key . ':' . $value . "\n";
    }

    return $canonicalizedHeaders;
}

/**
 * 获取content-Md5值
 *
 * @param string $content
 *            请求内容
 * @return string
 */
private function getContentMd5($content)
{
    return base64_encode(md5($content, true));
}

/**
 * 特殊字符编码
 *
 * @param string $value
 *            需要编码的字符串
 * @return string
 */
private function percentEncode($value)
{
    $value = urlencode($value);
    $value = preg_replace('/\+/', '%20', $value);
    $value = preg_replace('/\*/', '%2A', $value);
    $value = preg_replace('/%7E/', '~', $value);

    return $value;
}

echo "验证码已发送成功";

echo "验证码发送失败";