$toc .= "<li><a href=\"{$href}\">" . strip_tags($line) . "</a></li>";
$id = implode("_", array_slice($idNum, 1, $level));
$line = "<a name=\"{$id}\"></a>" . $line;
$toc .= "<li><a href=\"{$href}\">" . strip_tags($line) . "</a></li>";
$id = implode("_", array_slice($idNum, 1, $level));
$line = "<a name=\"{$id}\"></a>" . $line;