WordPress添加随便看看

随便看看顾名思义就是随机给出文章看看,就是本博客菜单栏上的随便看看的功能。很小但很实用。

原理:

  • 随机在博客中抽取一篇文章来访问。

操作方法:

  • 将以下代码加入到主题目录中的“functions.php”文件的 ?> 之前即可。
// 添加随便看看
function random_postlite() {
global $wpdb;
$query = "SELECT ID FROM $wpdb->posts WHERE post_type = 'post' AND post_password = '' AND post_status = 'publish' ORDER BY RAND() LIMIT 1";
if ( isset( $_GET['random_cat_id'] ) ) {
$random_cat_id = (int) $_GET['random_cat_id'];
$query = "SELECT DISTINCT ID FROM $wpdb->posts AS p INNER JOIN $wpdb->term_relationships AS tr ON (p.ID = tr.object_id AND tr.term_taxonomy_id = $random_cat_id) INNER JOIN $wpdb->term_taxonomy AS tt ON(tr.term_taxonomy_id = tt.term_taxonomy_id AND taxonomy = 'category') WHERE post_type = 'post' AND post_password = '' AND post_status = 'publish' ORDER BY RAND() LIMIT 1";
}
if ( isset( $_GET['random_post_type'] ) ) {
$post_type = preg_replace( '|[^a-z]|i', '', $_GET['random_post_type'] );
$query = "SELECT ID FROM $wpdb->posts WHERE post_type = '$post_type' AND post_password = '' AND post_status = 'publish' ORDER BY RAND() LIMIT 1";
}
$random_id = $wpdb->get_var( $query );
wp_redirect( get_permalink( $random_id ) );
exit;
}
if ( isset( $_GET['random'] ) )
add_action( 'template_redirect', 'random_postlite' );
// 随便看看结束

 使用方法:

  • 访问你网站的域名/?random即可看到效果
  • 如果要在导航菜单现实的话,在后台新建一个自定义URL菜单即可。
  • 也可以自己建一个PHP文件把代码复件进去调用也是可以的。

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沙发空缺中,还不快抢~