好的，我正在尝试获取在过去x时间内发布的帖子，选项有8小时、24小时或72小时。我将变量传递给我的featureHandler。通过ajax访问php，然后返回帖子，下面是我的做法：

$vars = $_GET[\'vars\'];
$time = $vars[0];
$order = $vars[1];

if ($time == 8 ) {
    function filter_where($where = \'\') {

        //posts in the last 8 Hours
        $where .= " AND post_date > \'".date(\'Y-m-d H:i:s\', strtotime(\'-8 hours\'))."\'";
        return $where;
    }
    add_filter(\'posts_where\', \'filter_where\', 10, $time);
} elseif ($time == 24) {
    function filter_where($where = \'\') {

        //posts in the last 24 Hours
        $where .= " AND post_date > \'".date(\'Y-m-d H:i:s\', strtotime(\'-24 hours\'))."\'";
        return $where;
    }
    add_filter(\'posts_where\', \'filter_where\', 10, $time);
} elseif ($time == 72) {
    function filter_where($where = \'\') {

        //posts in the last 72 Hours
        $where .= " AND post_date > \'".date(\'Y-m-d H:i:s\', strtotime(\'-72 hours\'))."\'";
        return $where;
    }
    add_filter(\'posts_where\', \'filter_where\', 10, $time);
}

?>

<div class="article-wrapper">
<?php

query_posts(array(
       \'post__not_in\' => get_option(\'sticky_posts\'), 
));

$itemCount = 0;

while ( have_posts() ) : the_post();

我认为这是半工作状态，除了我刚刚创建的一个帖子，只显示在24或72中，但在$time==8的情况下，这是为什么？我怎样才能使这段代码更有效率？

衷心感谢您。

add_filter(\'posts_where\', \'filter_where\', 11);
function filter_where($where = \'\') {
    if(isset($_GET[\'time\'])){
        $time = $_GET[\'time\'];
        $time=(int)$time; // only allow integers
        if(in_array($time,array(8,24,72))){
            $where .= " AND post_date > \'".date(\'Y-m-d H:i:s\', strtotime(\'-".$time." hours\'))."\'";
        }
    }
    return $where;
}