seo优化_前端开发_渗透技术分享几个WordPress不用插件调用随机文章的方法，不仅增强用户粘性，而且当蜘蛛来爬你的文章的时候每次都会有变化，搜索引擎很喜欢。主要用到的是orderby rand参数，下面就随ytkah一起来看看吧
1、最直接的用法，在需要的位置放入下面的代码。
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<?php$args = array( 'numberposts' => 5, 'orderby' => 'rand', 'post_status' => 'publish' );$rand_posts = get_posts( $args );foreach( $rand_posts as $post ) : ?> <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li><?php endforeach; ?> |
2、用query_posts生成随机文章列表
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<?phpquery_posts(array('orderby' => 'rand', 'showposts' => 2));if (have_posts()) : while (have_posts()) : the_post();?> <a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a> <?php endwhile; ?><?php endif; ?> |
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<?phpquery_posts(array('orderby' => 'rand', 'showposts' => 1));if (have_posts()) :while (have_posts()) : the_post();the_title(); //这行去掉就不显示标题the_excerpt(); //去掉这个就不显示摘要了endwhile;endif; ?> |
3、调用同分类随机文章
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<?php$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函数
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<?php $args = array( 'post_type' => 'post', 'showposts' => 4, 'orderby' => 'rand', 'cat' => -36,//除了id为36的分类 ); $my_query = new WP_Query($args); if( $my_query->have_posts() ) { while ($my_query->have_posts()) : $my_query->the_post(); ?> <div class="item"> <a href="<?php the_permalink(); ?>" class="box"> <?php the_post_thumbnail( array(285,360) ); ?> <div class="text"> <strong><?php the_title();?></strong> </div> </a> </div> <?php endwhile; wp_reset_query(); } ?> |
5、主题function定义
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/** * 随机文章 */function random_posts($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;} |
然后在想要显示随机文章的地方加入如下代码
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<div class="right"> <h3>随便找点看看！</h3> <ul> <?php random_posts(); ?> </ul></div><!-- 随机文章 --> |
