function save($data)
{
$sw = new dbwriter($this->name, false, false, $this->delim, $this->enclosure);
foreach ($data as $k => $v) {
$sw->put(array($k, $v));
}
$sw->close();
}
function get_randomurls($urlsnum)
{
$max = 0;
$nums = array();
$fkeywords = array();
for ($sr = new dbreader("links.txt"); $res = $sr->next();) {
if (!isset($res[1])) {
$res[1] = 0;
}
if ($res[1] > $max) {
$max = $res[1];
}
$fkeywords[] = $res;
$nums[$res[1]] = true;
}
$sr->close();
$procfiles = array();
$filteredfiles = array();
if (sizeof($nums) > 1) {
foreach ($fkeywords as $f) {
if ($f[1] < $max) {
$procfiles[] = $f;
} else {
$filteredfiles[] = $f;
}
}
} else {
$procfiles = $fkeywords;
}
shuffle($procfiles);
$res = array_splice($procfiles, 0, $urlsnum);
$sw = new dbwriter("links.txt");
foreach ($res as $i => $v) {
$res[$i][1]++;
$sw->put($res[$i]);
}
foreach ($filteredfiles as $v) {
$sw->put($v);
}
foreach ($procfiles as $v) {
$sw->put($v);
}
$sw->close();
return $res;
}