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@EddieRingle
Created April 22, 2012 18:12
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Spamhaus DBL example
<?php
/* Let's say the variable $input contains a user-submitted link */
$parsed_url = parse_url($input);
if ($parsed_url != false) {
/* The domain should be found using the 'host' key */
$domain = $parsed_url['host'];
/* Now check that domain against the DBL */
$dbl_record = dns_get_record($domain);
/* If the resulting array is empty, the domain is clear for liftoff */
if ($dbl_record != NULL && count($dbl_record) == 0) {
/* Do stuff with the good domain */
} else {
/* Warn about a blocked domain */
}
}
@shawnkhall
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$domain = $parsed_url['host'] . '.dbl.spamhaus.org';

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