public function parse($content = '')
{
if (empty($content)) {
return '';
}
for ($i = 0, $count = count($this->ubb); $i < $count; $i++) {
if (count($this->ubb[$i]) == 4) {
//解析闭合标签
$content = $this->closeTag($content, $this->ubb[$i]);
} else {
$content = $this->onceTag($content, $this->ubb[$i]);
}
}
return nl2br($content);
}