Hide Posts From Logged Out Users https://wp.me/p1lTu0-gTu

functions.php

<?php Do NOT copy this opening php tag
 
add_filter( 'the_content', 'filter_content', 10, 1 ); 
 
function filter_content( $content ) { 
    
    $limit = wp_trim_words( get_the_content(), 20, '.....' );
    
    $login_form = sprintf( '<p><h4 class="restricted-post"><a href="%s">Login</a> to view the full content</h4></p>', wp_login_url( get_permalink() ) );

    $limit = $limit . $login_form;

    $output = ! is_user_logged_in() && in_category( 'lifestyle' ) && is_singular( 'post' ) ? $limit : $content;
    
    return $output;
}