<?php
function checkSpam($ipAddress) {
// Validate the IP address
if (!filter_var($ipAddress, FILTER_VALIDATE_IP)) {
echo "Invalid IP address format\n";
return;
}
// List of spam databases to check
$spamDatabases = array(
"b.barracudacentral.org",
"bl.spamcop.net",
"dnsbl.sorbs.net",
"zen.spamhaus.org"
);
// Check each database for the IP address
foreach ($spamDatabases as $db) {
$query = $ipAddress . "." . $db;
$result = gethostbyname($query);
// Check if the IP address is listed
if ($result == "127.0.0.2" || $result == "::1") {
echo "$ipAddress found in $db\n";
return;
} else {
echo "$ipAddress not found in $db\n";
}
}
}
// Example usage
$ipToCheck = "123.456.789.10"; // Replace this with the IP address you want to check
checkSpam($ipToCheck);
?>
它会验证 IP 地址格式,然后使用 DNSBL(DNS 黑名单)查找将其与多个垃圾邮件数据库进行核对。如果在任何一个数据库中找到该 IP 地址,它会打印一条消息,表明该地址位于何处。否则,它会打印一条消息,表明在特定数据库中未找到该 IP 地址。
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