Typecho模板设置数据会在你换模板的时候被清空，这样的设置其实我还是蛮喜欢的，不会有数据残留。
但是有些朋友可能会希望保留数据，这样下次在切换回来之后数据就保留了。

//备份开始
$db = Typecho_Db::get();
$sjdq=$db->fetchRow($db->select()->from ('table.options')->where ('name = ?', 'theme:splity'));
$ysj = $sjdq['value'];
if(isset($_POST['type']))
{ 
if($_POST["type"]=="备份模板数据"){
if($db->fetchRow($db->select()->from ('table.options')->where ('name = ?', 'theme:splitybf'))){
$update = $db->update('table.options')->rows(array('value'=>$ysj))->where('name = ?', 'theme:splitybf');
$updateRows= $db->query($update);
echo '<div class="tongzhi">备份已更新，请等待自动刷新！如果等不到请点击';
?>    
<a href="<?php Helper::options()->adminUrl('options-theme.php'); ?>">这里</a></div>
<script language="JavaScript">window.setTimeout("location=\'<?php Helper::options()->adminUrl('options-theme.php'); ?>\'", 2500);</script>
<?php
}else{
if($ysj){
     $insert = $db->insert('table.options')
    ->rows(array('name' => 'theme:splitybf','user' => '0','value' => $ysj));
     $insertId = $db->query($insert);
echo '<div class="tongzhi">备份完成，请等待自动刷新！如果等不到请点击';
?>    
<a href="<?php Helper::options()->adminUrl('options-theme.php'); ?>">这里</a></div>
<script language="JavaScript">window.setTimeout("location=\'<?php Helper::options()->adminUrl('options-theme.php'); ?>\'", 2500);</script>
<?php
}
}
        }
if($_POST["type"]=="还原模板数据"){
if($db->fetchRow($db->select()->from ('table.options')->where ('name = ?', 'theme:splitybf'))){
$sjdub=$db->fetchRow($db->select()->from ('table.options')->where ('name = ?', 'theme:splitybf'));
$bsj = $sjdub['value'];
$update = $db->update('table.options')->rows(array('value'=>$bsj))->where('name = ?', 'theme:splity');
$updateRows= $db->query($update);
echo '<div class="tongzhi">检测到模板备份数据，恢复完成，请等待自动刷新！如果等不到请点击';
?>    
<a href="<?php Helper::options()->adminUrl('options-theme.php'); ?>">这里</a></div>
<script language="JavaScript">window.setTimeout("location=\'<?php Helper::options()->adminUrl('options-theme.php'); ?>\'", 2000);</script>
<?php
}else{
echo '<div class="tongzhi">没有模板备份数据，恢复不了哦！</div>';
}
}
if($_POST["type"]=="删除备份数据"){
if($db->fetchRow($db->select()->from ('table.options')->where ('name = ?', 'theme:splitybf'))){
$delete = $db->delete('table.options')->where ('name = ?', 'theme:splitybf');
$deletedRows = $db->query($delete);
echo '<div class="tongzhi">删除成功，请等待自动刷新，如果等不到请点击';
?>    
<a href="<?php Helper::options()->adminUrl('options-theme.php'); ?>">这里</a></div>
<script language="JavaScript">window.setTimeout("location=\'<?php Helper::options()->adminUrl('options-theme.php'); ?>\'", 2500);</script>
<?php
}else{
echo '<div class="tongzhi">不用删了！备份不存在！！！</div>';
}
}
    }
echo '<form class="protected" action="?splitybf" method="post">
<input type="submit" name="type" class="btn btn-s" value="备份模板数据" />&nbsp;&nbsp;<input type="submit" name="type" class="btn btn-s" value="还原模板数据" />&nbsp;&nbsp;<input type="submit" name="type" class="btn btn-s" value="删除备份数据" /></form>';
//备份结束