Sms.php

<?php
class Sms{
    private $_error = [];

    //发送短信
    public function send($api_url,$send_data){
        $res_data = $this->http_post($api_url,$send_data);
        return json_decode($res_data, true);
    }

    //获取access_token
    public function getAccessToken($api_url,$param){
        $res_data = $this->http_post($api_url,$param);
        return json_decode($res_data, true);
    }
    //发送post请求
    private function http_post($api_url = '', $param = []) {
        $ch = curl_init();
        if (0 === strpos(strtolower($api_url), 'https')) {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        }
        curl_setopt($ch, CURLOPT_URL, $api_url);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        $headers = ['Content-type: application/json;charset=utf-8',
            'Accept: application/json'];
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($param));

        $res = curl_exec($ch);
        $error = curl_error($ch);
        curl_close($ch);
        if ($error) {
            $this->_error[] = $error;
            return FALSE;
        }
        return $res;
    }

    public function error_msg(){
        return $this->_error;
    }
}

sendSms.php

<?php
require 'Sms.php';
//appKey 应用标识，添加应用成功后应用的唯一标识
$sms = new Sms();
$token_url = 'https://api.chuangcache.com/OAuth/authorize';
$token_params = [
    'appid'      => 'appid',
    'appsecret'  => 'appsecret',
    'grant_type' => 'client_credentials'
];
$result = $sms->getAccessToken($token_url, $token_params);
$access_token = '';
if (isset($result['status']) && $result['status'] == 1) {
    $access_token = $result['data']['access_token'];
    $expires_in = $result['data']['expires_in'];//access_token的生命周期，单位是秒数。过期之后要重新获取
}
$send_data = [
    'app_key'      => 'app_key',
    'mobile'       => 'mobile',
    'content'      => '你的验证码是403763，此验证码用于登录。10秒钟之内有效',
    'access_token' => $access_token,
    'time'         => time() * 1000
];
$sms_url = 'http://sms.chuangcache.com/api/sms/ordinary';
//
////发送短信
$res_data = $sms->send($sms_url, $send_data);
//
if ($res_data) {
    if (isset($res_data['code']) && $res_data['code'] == 1000) {
        echo 'success'.$res_data['sendid'];
    } else {
        echo 'failed,code:' . $res_data['code'] . ',msg:' . $res_data['msg'];
    }
} else {
    var_dump($sms->error_msg());
}
exit;