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I launched this blog in 1995. Since then, we have published 1603 articles. It's all free and means a lot of work in my spare time. I enjoy sharing knowledge and experiences with you.
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For doing basic RBL (Real Time Blacklist) lookups with this function do:
<?
$host = '64.53.200.156';
$rbl = 'sbl-xbl.spamhaus.org';
// valid query format is: 156.200.53.64.sbl-xbl.spamhaus.org
$rev = array_reverse(explode('.', $host));
$lookup = implode('.', $rev) . '.' . $rbl;
if ($lookup != gethostbyname($lookup)) {
echo "ip: $host is listed in $rbl\n";
} else {
echo "ip: $host NOT listed in $rbl\n";
}
?>This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as attribution is given to the creator. The license allows for commercial use. If you remix, adapt, or build upon the material, you must license the modified material under identical terms.
