Question

我有这个代码，它可以完全使用MAMP在我的localhost上运行。但是，只要我将其转移到带有在线数据库的实时网站，它就会告诉我，无论如何我都会被禁止。

    <?php

include "db/connect.php";

if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    $userIp = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $userIp = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
    $userIp = $_SERVER['REMOTE_ADDR'];
}

$ipQuery = mysqli_query($db, "SELECT * FROM banned_ip WHERE ip='".$userIp."'");
$ipCheck = mysqli_num_rows($ipQuery);

if($userIp == $ipCheck) {
  }
else{
    die ('You are banned from this site!');
}

?>

Answer 1

if($ipCheck != 0) //banned
else //not banned

您正在计算查询返回的行数。如果一个或多个返回的行IP地址被禁止。

Answer 2

$sql = mysql_query ("SELECT ip FROM blocklistIp WHERE ip = '" . mysql_escape_string(getenv('REMOTE_ADDR')) . "' LIMIT 0,1");
if ( mysql_num_rows ($sql) ) {
 // code here match found
}
else {
 // no match found
}

检查IP是否被禁止

2 个答案: