分享幾個WordPress不用插件調用隨機文章的方法,不僅增強用戶粘性,而且當蜘蛛來爬你的文章的時候每次都會有變化,搜索引擎很喜歡。主要用到的是orderby rand參數,下面就隨ytkah一起來看看吧
1、最直接的用法,在需要的位置放入下面的代碼。
<?php
$args = array( 'numberposts' => 5, 'orderby' => 'rand', 'post_status' => 'publish' );
$rand_posts = get_posts( $args );
foreach( $rand_posts as $post ) : ?>
<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; ?>
2、用query_posts生成隨機文章列表
<?php
query_posts(array('orderby' => 'rand', 'showposts' => 2));
if (have_posts()) :
while (have_posts()) : the_post();?>
<a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a>
<?php endwhile; ?>
<?php endif; ?>
<?php
query_posts(array('orderby' => 'rand', 'showposts' => 1));
if (have_posts()) :
while (have_posts()) : the_post();
the_title(); //這行去掉就不顯示標題
the_excerpt(); //去掉這個就不顯示摘要了
endwhile;
endif; ?>
3、調用同分類隨機文章
<?php
$cat = get_the_category();
foreach($cat as $key=>$category){
$catid = $category->term_id;
}
$args = array('orderby' => 'rand','showposts' => 8,'cat' => $catid );
$query_posts = new WP_Query();
$query_posts->query($args);
while ($query_posts->have_posts()) : $query_posts->the_post();
?>
<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endwhile;?>
<?php wp_reset_query(); ?>
4、用wp_query函數
<?php
$args = array(
'post_type' => 'post',
'showposts' => 4,
'orderby' => 'rand',
'cat' => -36,//除了id為36的分類
);
$my_query = new WP_Query($args);
if( $my_query->have_posts() ) {
while ($my_query->have_posts()) : $my_query->the_post(); ?>
<div class="item">
<a href="<?php the_permalink(); ?>" class="box">
<?php the_post_thumbnail( array(285,360) ); ?>
<div class="text">
<strong><?php the_title();?></strong>
</div>
</a>
</div>
<?php endwhile; wp_reset_query(); } ?>
5、主題function定義
/**
* 隨機文章
*/
function random_posts($posts_num=5,$before='<li>',$after='</li>'){
global $wpdb;
$sql = "SELECT ID, post_title,guid
FROM $wpdb->posts
WHERE post_status = 'publish' ";
$sql .= "AND post_title != '' ";
$sql .= "AND post_password ='' ";
$sql .= "AND post_type = 'post' ";
$sql .= "ORDER BY RAND() LIMIT 0 , $posts_num ";
$randposts = $wpdb->get_results($sql);
$output = '';
foreach ($randposts as $randpost) {
$post_title = stripslashes($randpost->post_title);
$permalink = get_permalink($randpost->ID);
$output .= $before.'<a href="'
. $permalink . '" rel="bookmark" title="';
$output .= $post_title . '">' . $post_title . '</a>';
$output .= $after;
}
echo $output;
}
然后在想要顯示隨機文章的地方加入如下代碼
<div class="right"> <h3>隨便找點看看!</h3> <ul> <?php random_posts(); ?> </ul> </div><!-- 隨機文章 -->
