<?php
$resolv = "/etc/resolv.conf";

$file_handle = fopen($resolv, "r");

while (!feof($file_handle)) {
    $line = fgets($file_handle);
    if (strstr($line, "nameserver") || strstr($line, "search")) {
        $line     = sscanf($line, "%s %s", $tag, $value);
        // echo $value;
        $dnsArr[] = $value;
    }
}

fclose($file_handle);

$result = array();

foreach ($dnsArr as $k => $v) {
    array_push($result, $v);
}

return implode(", ", $result);

?>