<?php
// 短信发送工具类
class SmsUtils{
    // 获取时间戳
    public static function getTimestamp() {
        return time() * 1000;
    }

    // 生成sign
    public static function generateSign($account, $password, $timestamp) {
        $value = $account . $timestamp . md5($password);
        return md5($value);
    }

    // post请求
    public static function send($url, $data) {
        // 定义请求选项
        $options = [
            'http' => [
                'header'  => "Content-Type: application/json;charset=utf-8\r\nAccept: application/json\r\n",
                'method'  => 'POST',
                'content' => json_encode($data)
            ]
        ];
        // 发送 HTTP 请求
        $context = stream_context_create($options);
        $result = file_get_contents($url, false, $context);
        return $result;
    }
}
?>