GPT答：

7i24.cn

<?php 
/**
 * 判断文件夹是否存在，不存在则创建
 */
$txtDirName = 'IpRecord';
if(!file_exists($txtDirName)){     
	mkdir($txtDirName, 0777);       
}

/**
 * 获取用户的真实IP
 */
function get_client_ip() {
   $ipaddress = '';
   if (isset($_SERVER['HTTP_CLIENT_IP']))
       $ipaddress = $_SERVER['HTTP_CLIENT_IP'];
   else if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
       $ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
   else if(isset($_SERVER['HTTP_X_FORWARDED']))
       $ipaddress = $_SERVER['HTTP_X_FORWARDED'];
   else if(isset($_SERVER['HTTP_FORWARDED_FOR']))
       $ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
   else if(isset($_SERVER['HTTP_FORWARDED']))
       $ipaddress = $_SERVER['HTTP_FORWARDED'];
   else if(isset($_SERVER['REMOTE_ADDR']))
       $ipaddress = $_SERVER['REMOTE_ADDR'];
   else
       $ipaddress = 'UNKNOWN';

   return $ipaddress;
}

$ipAddress = get_client_ip();

/**
 * 获取访问次数
 */
$filePath = $txtDirName.'/ip_records.txt';
$number  = 0; 
if(file_exists($filePath)) {
    $msg = file_get_contents($filePath);
    $arr = explode(',', $msg);
    $number = $arr[1];
    $number++;
}

/**
 * 将IP和访问次数一起记录到txt文本里
 */
$data = $ipAddress.','.$number;
file_put_contents($filePath, $data);