get_page_by_title() 源代码显示它只运行一个mysql查询。通过编写自定义查询，可以将函数的两个调用简化为一个查询：

global $wpdb;

$qry = "SELECT ID FROM $wpdb->posts WHERE (post_title = %s OR post_title = %s) AND post_status = \'publish\'";
$sql = $wpdb->prepare($qry, \'title1\', \'title2\' );
$res = $wpdb->get_results( $sql );

$getIDs = array();
foreach ($res as $result)
    $getIDs[] = $result->ID;

$exclude = implode(\',\', $getIDs);

但是，我认为应该简化它，在其中添加缓存以减少_posts 对于这样一件小事：

global $wpdb;

if ( false === ( $exclude = get_transient( \'myplugin_exclude\' ) ) ) {
    $qry = "SELECT ID FROM $wpdb->posts WHERE (post_title = %s OR post_title = %s) AND post_status = \'publish\'";
    $sql = $wpdb->prepare($qry, \'title1\', \'title2\' );
    $res = $wpdb->get_results( $sql );

    $getIDs = array();
    foreach ($res as $result)
        $getIDs[] = $result->ID;

    $exclude = implode(\',\', $getIDs);
    set_transient( \'myplugin_exclude\', $exclude, 60*60*24 ); // once a day
}

wp_list_pages("title_li=&exclude={$exclude}");

现在它很长，我想将其包装在函数中不会有什么坏处-有助于保持事物的整洁并有助于重用：

function get_two_pages_ids_by_titles($title1,$title2,$name) {
    global $wpdb;

    if ( false === ( $exclude = get_transient( $name ) ) ) {
        $qry = "SELECT ID FROM $wpdb->posts WHERE (post_title = %s OR post_title = %s) AND post_status = \'publish\'";
        $sql = $wpdb->prepare($qry, $title1, $title2 );
        $res = $wpdb->get_results( $sql );

        $getIDs = array();
        foreach ($res as $result)
            $getIDs[] = $result->ID;

        $exclude = implode(\',\', $getIDs);
        set_transient( $name, $exclude, 60*60*24 ); // once a day
    }
    return $exclude;
}

然后你可以简单地做：

<?php
    $exclude = get_two_pages_ids_by_titles(\'title1\',\'title2\',\'listpages_exclude\');
    wp_list_pages("title_li=&exclude=".$exclude);
?>

显然get_two_pages_ids_by_titles 有点傻，太具体了。接受一个标题数组并返回一个ID会更好，但这应该有助于引导一种获取所需内容的方法。

希望这有帮助。