PHP implements SMS verification code for checking mobile phone number and IMEI

isMobile($mobile)) {
      $this->error = array('code' => -1, 'msg' => '这个手机号很奇葩哦，请正确输入后重试');
      return false;
    }
 
    $redis = Api_Common::redis();
    $vcKey = 'VC_'.$mobile;
    $limitKey = 'VC_LIMIT_'.$mobile;
 
    // 验证码重发限制
    $data = json_decode($redis->get($vcKey), true);
    if($data && time() < $data['resend_expire']) {
      $this->error = array('code' => -1, 'msg' => '短信已在1分钟内发出，请耐心等待');
      return false;
    }
 
    // 手机号及IMEI限制
    $sendCnt = $redis->zScore($limitKey, $imei);
    if($sendCnt && $sendCnt >= self::ONE_DAY_FREQ) {
      $this->error = array('code' => -1, 'msg' => '没收到短信?请稍等或检查短信是否被屏蔽');
      return false;
    }
    $imeiCnt = $redis->zCard($limitKey);
    if($imeiCnt >= self::ONE_DAY_IMEI_COUNT && !$sendCnt) {
      $this->error = array('code' => -1, 'msg' => '已超过验证码发送设备限制');
      return false;
    }
 
    // 获取验证码
    if(!$data) {
      $vc = strval(rand(100000, 999999));
      $data = array('vc' => $vc, 'resend_expire' => 0);
      $redis->set($vcKey, json_encode($data));
      $redis->expire($vcKey, self::EXPIRE_SEC); // 设置验证码过期时间
    }
    $vc = $data['vc'];
 
    $content = '安全验证码：'.$vc;
    $result = $this->send($mobile, $content);
    if($result) {
      // 重设重发时限
      $data['resend_expire'] = time() + self::RESEND_SEC;
      $ttl = $redis->ttl($vcKey);
      $redis->set($vcKey, json_encode($data));
      $redis->expire($vcKey, $ttl);
 
      // 设置手机号与IMEI限制
      $redis->zIncrBy($limitKey, 1, $imei);
      $redis->expireAt($limitKey, strtotime(date('Y-m-d',strtotime('+1 day'))));
    }
    return $result;
  }
 
  /**
   * 向指定手机号发送短信
   * @param $mobile
   * @param $content
   * @return bool
   */
  public function send($mobile, $content){
    // TODO 调用具体服务商API
    return true;
  }
 
  /**
   * 判断是否为合法手机号
   * @param $mobile
   * @return bool
   */
  private function isMobile($mobile) {
    if(preg_match('/^1\d{10}$/', $mobile))
      return true;
    return false;
  }
 
  /**
   * 验证短信验证码
   * @param $mobile
   * @param $vc
   * @return bool
   */
  public function checkVerifyCode($mobile, $vc) {
    $vcKey = 'VC_'.$mobile;
    $vcData = json_decode(Api_Common::redis()->get($vcKey), true);
    if($vcData && $vcData['vc'] === $vc) {
      return true;
    }
    return false;
  }
 
  /**
   * 清除验证码
   * @param $mobile
   */
  public function cleanVerifyCode($mobile) {
    $redis = Api_Common::redis();
    $vcKey = 'VC_'.$mobile;
    $limitKey = 'VC_LIMIT_'.$mobile;
    $redis->del($vcKey);
    $redis->del($limitKey);
  }
}

$uid,         //用户账号
    'pwd'=>strtolower(md5($pwd)),  //MD5位32密码
    'mobile'=>$mobile,        //号码
    'content'=>$content,     //内容
    'time'=>$time,    //定时发送
    'mid'=>$mid           //子扩展号
    );
  $re= postSMS($http,$data);     //POST方式提交
  if( trim($re) == '100' )
  {
    return "发送成功!";
  }
  else
  {
    return "发送失败! 状态：".$re;
  }
}
 
function postSMS($url,$data='')
{
  $row = parse_url($url);
  $host = $row['host'];
  $port = $row['port'] ? $row['port']:80;
  $file = $row['path'];
  while (list($k,$v) = each($data)) 
  {
    $post .= rawurlencode($k)."=".rawurlencode($v)."&"; //转URL标准码
  }
  $post = substr( $post , 0 , -1 );
  $len = strlen($post);
  $fp = @fsockopen( $host ,$port, $errno, $errstr, 10);
  if (!$fp) {
    return "$errstr ($errno)\n";
  } else {
    $receive = '';
    $out = "POST $file HTTP/1.1\r\n";
    $out .= "Host: $host\r\n";
    $out .= "Content-type: application/x-www-form-urlencoded\r\n";
    $out .= "Connection: Close\r\n";
    $out .= "Content-Length: $len\r\n\r\n";
    $out .= $post;   
    fwrite($fp, $out);
    while (!feof($fp)) {
      $receive .= fgets($fp, 128);
    }
    fclose($fp);
    $receive = explode("\r\n\r\n",$receive);
    unset($receive[0]);
    return implode("",$receive);
  }
}
?>