如何查詢用戶的IP地址？

Question

我正在使用PHP和MySQL。我如何查詢用戶的IP地址？

Answer 1

function get_client_ip() 
{ 
     $ipaddress = ''; 
     if (getenv('HTTP_CLIENT_IP')) 
      $ipaddress = getenv('HTTP_CLIENT_IP'); 
     else if(getenv('HTTP_X_FORWARDED_FOR')) 
      $ipaddress = getenv('HTTP_X_FORWARDED_FOR'); 
     else if(getenv('HTTP_X_FORWARDED')) 
      $ipaddress = getenv('HTTP_X_FORWARDED'); 
     else if(getenv('HTTP_FORWARDED_FOR')) 
      $ipaddress = getenv('HTTP_FORWARDED_FOR'); 
     else if(getenv('HTTP_FORWARDED')) 
      $ipaddress = getenv('HTTP_FORWARDED'); 
     else if(getenv('REMOTE_ADDR')) 
      $ipaddress = getenv('REMOTE_ADDR'); 
     else 
      $ipaddress = 'UNKNOWN'; 

     return $ipaddress; 
} 

Source

Answer 2

這會顯示IP地址

echo $_SERVER['REMOTE_ADDR']; 

如果要存儲用戶的IP地址，使用這個

$ipaddress = echo $_SERVER['REMOTE_ADDR']; 


mysql_query("insert into table set ipaddress = '$ipaddress' where userid = '$userid' "); 

Answer 3

您可以使用此

回聲$ _ SERVER [ 'REMOTE_ADDR'];