laravel框架使用阿里云短信发送消息操作示例(3)

/**
 * 获取真实IP地址
 */
function getRealIp()
{
  $ip = false;
  if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) {
    $ip = getenv("HTTP_CLIENT_IP");
  } else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) {
    $ips = explode(", ", getenv("HTTP_X_FORWARDED_FOR"));
    if ($ip) {
      array_unshift($ips, $ip);
      $ip = false;
    }
    $ipscount = count($ips);
    for ($i = 0; $i < $ipscount; $i++) {
      if (!preg_match("/^(10|172\.16|192\.168)\./i", $ips[$i])) {
        $ip = $ips[$i];
        break;
      }
    }
  } else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")) {
    $ip = getenv("REMOTE_ADDR");
  } else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) {
    $ip = $_SERVER['REMOTE_ADDR'];
  } else {
    $ip = "unknown";
  }
  return isIp($ip) ? $ip : "unknown";
}
/**
 * 检查是否是合法的IP
 */
function isIp($ip)
{
  if (preg_match('/^((\d|[1-9]\d|2[0-4]\d|25[0-5]|1\d\d)(?:\.(\d|[1-9]\d|2[0-4]\d|25[0-5]|1\d\d)){3})$/', $ip)) {
    return true;
  } else {
    return false;
  }
}
/**
 * 验证手机号
 */
function checkMobile($mobile)
{
  return preg_match('/^((13[0-9])|(14[5,7])|(15[0-3,5-9])|(17[0,3,5-8])|(18[0-9])|166|198|199|(147))\d{8}$/i', $mobile);
}