[英]Browsing page siblings through next/previous links
將以下代碼彈出到活動主題目錄中的functions.php文件中:
function siblings($link) {
global $post;
$siblings = get_pages('child_of='.$post->post_parent.'&parent='.$post->post_parent);
foreach ($siblings as $key=>$sibling){
if ($post->ID == $sibling->ID){
$ID = $key;
}
}
$closest = array('before'=>get_permalink($siblings[$ID-1]->ID),'after'=>get_permalink($siblings[$ID+1]->ID));
if ($link == 'before' || $link == 'after') { echo $closest[$link]; } else { return $closest; }
}
要調用該函數:
<?php siblings('before'); ?>
要么
<?php siblings('after'); ?>
它將回顯前一頁或下一頁的鏈接。
如果你想要兩個,你可以將函數留空,它將返回一個包含兩個鏈接的數組。
來自wordpress Codex
<?php
$pagelist = get_pages('sort_column=menu_order&sort_order=asc');
$pages = array();
foreach ($pagelist as $page) {
$pages[] += $page->ID;
}
$current = array_search(get_the_ID(), $pages);
$prevID = $pages[$current-1];
$nextID = $pages[$current+1];
?>
<div class="navigation">
<?php if (!empty($prevID)) { ?>
<div class="alignleft">
<a href="<?php echo get_permalink($prevID); ?>"
title="<?php echo get_the_title($prevID); ?>">Previous</a>
</div>
<?php }
if (!empty($nextID)) { ?>
<div class="alignright">
<a href="<?php echo get_permalink($nextID); ?>"
title="<?php echo get_the_title($nextID); ?>">Next</a>
</div>
<?php } ?>
</div><!-- .navigation -->
從我在這里得到的答案開始的粗略片段(獲得真實的鏈接和行動中的帖子標題) - 可能對某人有幫助!
$closest = array('before'=>get_permalink($siblings[$ID-1]->ID),'after'=>get_permalink($siblings[$ID+1]->ID));
$name = array('before'=>get_the_title($siblings[$ID-1]->ID),'after'=>get_the_title($siblings[$ID+1]->ID));
if ($link == 'before' || $link == 'after') {
echo '<a href="' . $closest[$link] . '">';
echo '<span>' . $name[$link] . '</span></a>';
}
else { return $closest; }
這里的另一個功能基於jackreichert的答案。 當你位於兄弟姐妹列表的末尾時,它會附加到最后/第一個兄弟的附加功能,所以你可以無休止地循環。 它還使用菜單順序。
function get_sibling_link($link) {
global $post;
$siblings = get_pages('sort_column=menu_order&child_of='.$post->post_parent.'&parent='.$post->post_parent);
foreach ($siblings as $key => $sibling){
if ($post->ID == $sibling->ID){
$current_id = $key;
}
}
$closest = [
'before' => get_permalink( $siblings[$current_id-1]->ID ),
'after' => get_permalink( $siblings[$current_id+1]->ID )
];
if($siblings[$current_id-1]->ID == '' ){
$closest['before'] = get_permalink( $siblings[count($siblings)-1]->ID );
}
if($siblings[$current_id+1]->ID == '' ){
$closest['after'] = get_permalink( $siblings[0]->ID );
}
if ($link == 'before' || $link == 'after') {
echo $closest[$link];
} else {
return $closest;
}
}
在嘗試了幾個解決方案之后,盡量不安裝另一個插件,最終唯一有效的是免費插件: 下一頁,不是下一篇文章 。
(我在這里給出的解決方案存在問題,我想也許是因為我在Wordpress Admin的Pages部分手動訂購頁面。你可以手動選擇頁面順序。所以層次結構中的第一頁可能有100的ID,並且第二頁的ID可能為10.頁面ID不是我的頁面訂購方式。)
function siblings()
{
global $post;
$args = array(
'sort_order' => 'ASC',
'sort_column' => 'menu_order',
'hierarchical' => 1,
'child_of' => $post->post_parent,
'parent' => $post->post_parent,
'exclude_tree' => '',
'offset' => -1,
'post_type' => 'page',
'post_status' => 'publish'
);
$siblings = get_pages($args);
foreach ($siblings as $key=>$sibling)
{
if ($post->ID == $sibling->ID)
{
$ID = $key;
}
}
$closest = array(
'back' => array('perm_link' => get_permalink(isset($siblings[$ID -1]->ID) ? $siblings[$ID -1]->ID : $siblings[$ID]->ID), 'title' => get_the_title(isset($siblings[$ID -1]->ID) ? $siblings[$ID -1]->ID : $siblings[$ID]->ID)),
'next' => array('perm_link' => get_permalink(isset($siblings[$ID +1]->ID) ? $siblings[$ID +1]->ID : $siblings[$ID]->ID) , 'title' => get_the_title(isset($siblings[$ID +1]->ID) ? $siblings[$ID +1]->ID : $siblings[$ID]->ID))
);
return $closest;
}
然后使用如下:
<?php
$newrenderViews = new renderViews() ;
$back_next = $newrenderViews->siblings();
$next = $back_next['next'] ;
$next_title = $next['title'] ;
$next_link = $next['perm_link'] ;
$back = $back_next['back'] ;
$back_title = $back['title'] ;
$back_link = $back['perm_link'] ;
?>
<div class="section" >
<div class="content_wrapper " style="background-color: #8A8C8F; width: 970px;">
<p class="navbar-text pull-right">
<a href="<? echo $next_link; ?>" class="navbar-link" style="color: #ffffff;">Next - <?php echo $next_title ; ?></a>
</p>
<p class="navbar-text pull-left">
<a href="<? echo $back_link; ?>" class="navbar-link" style="color: #ffffff;margin-left: 340px;">Go back - <?php echo $back_title ; ?></a>
</p>
</div>
</div>
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