Hide categories and articles but see them after login - WordPress Tutorial

Some users want to show some content only to the login users of the website, so that they can cooperate with Invitation code They charged a fee. this time Wordpress Tutorial The shared code can If the visitor is not logged in, the article under the specified category will be hidden, and the URL of the article visited by the user who is not logged in will return 404 。

• Source code: details

Add the following code to the functions.php In <? php Then:

 ob_start(); function yincangwenzhang( $query ) { $delete_cat_yc=array('-72','-4','-5');// The upper and lower numbers should always represent your classified ID $delete_cat=array('72','4','5'); if(! is_user_logged_in()){ //Jump 404 when the user is not logged in to visit the article page if(is_single()&&in_category($delete_cat)){ wp_safe_redirect(home_url().'/ 404'); exit; } //Hide articles on the home page and other pages //$query->is_home()||$query->is_search()||$query->is_archive() //The uplink code works the same way, but I don't know why the articles on the author's page are not hidden, and it is useless to have parameters, so use the following If (get_current_user_id()==0) {//The user's unlisted ID is 0, and the article is hidden $query->set( 'cat', $delete_cat_yc); } }return $query; } add_filter( 'pre_get_posts', 'yincangwenzhang' );

Prompt: get_current_user_id(); The function is to obtain the user ID

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