wordpress公告栏数据库缓存版
本来想大概八点二十发,但是没忍住. wordpress公告栏数据库缓存版 完善了willin的数据库缓存代码,添加了删除评论时也刷新缓存的功能 公告栏只展示管理员主评论,不展示子评论 以下代码直接放在functions.php内,然后在需要展示公告栏的地方扔一句 ?php bulletin
本来想大概八点二十发,但是没忍住.
wordpress公告栏数据库缓存版
- 完善了willin的数据库缓存代码,添加了删除评论时也刷新缓存的功能
- 公告栏只展示管理员主评论,不展示子评论
- 以下代码直接放在functions.php内,然后在需要展示公告栏的地方扔一句
<?php bulletin();?>
.
使用之前请把post_id' => 1884
的1884改成你的公告栏页面id
function bulletin(){ if (!$announcement = get_option('clear_buffer')) { $args = array('post_id' => 1884,'number' => 5,'user_id' => '1',parent => '0');$announcement = ''; $comments = get_comments($args);foreach ($comments as $comment) {$announcement .= '
原理.
通过update_option来在数据库中添加表以实现缓存,此代码具有通用性,如果想为其他函数实现缓存,只需参照这个例子来折腾.例如,我公告栏原代码为:
function bulletin(){ $args = array('post_id' => 1884,'number' => 5,'user_id' => '1',parent => '0');$announcement = ''; $comments = get_comments($args);foreach ($comments as $comment) {$announcement .= '
可以对比文章开头那段代码,一起来找茬,找到的茬(也就是我用红色标注的地方)就是数据库缓存通用代码.
以此类推,还可以缓存更多函数,如果要给不同的函数缓存,只需把其他函数的if (!$announcement = get_option('clear_buffer'))
改成if (!$announcement = get_option('clear_buffer2'))
,
然后把
function clear_buffer_function() { update_option('clear_buffer', ''); }
改成
function clear_buffer_function() { update_option('clear_buffer', ''); update_option('clear_buffer2', ''); //以此类推 }
其他地方不动,即可
福利
今天的代码有点长有点复杂,为了奖励各位认真看完的小盆友,送上一组福利...
原文地址:wordpress公告栏数据库缓存版, 感谢原作者分享。

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