This works well on archive.php, but not working on the homepage. For some reason, the first statement doesn\'t get applied: if a post is in Members category and user is not logged in, it\'s supposed to show a default placeholder image, but instead it\'s still showing the actual post thumbnail.
<?php if (!is_user_logged_in() && in_category(\'members\')) { ?>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>">
<img src="<?php bloginfo(\'template_directory\'); ?>/img/default-login.jpg" alt="<?php the_title(); ?>" />
</a>
<?php }
else if (is_user_logged_in() || !in_category(\'members\')) { ?>
<a href="<?php echo get_permalink($post_item[\'ID\']) ?>">
<?php echo get_the_post_thumbnail($post_item[\'ID\'], \'news-thumb\'); ?>
</a>
<?php } else { ?>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>">
<img src="<?php bloginfo(\'template_directory\'); ?>/img/default.jpg" alt="<?php the_title(); ?>" />
</a>
<?php } ?>
I\'m using:
<?php
$recent_posts = wp_get_recent_posts(array(
\'numberposts\' => 6, // Number of recent posts to display
\'post_status\' => \'publish\' // Show only the published posts
));
foreach( $recent_posts as $post_item ) : ?>
Final version so far:
<?php
$recent_posts = wp_get_recent_posts( array(
\'numberposts\' => 6, // Number of recent posts to display
\'post_status\' => \'publish\' // Show only the published posts
), OBJECT ); // 1. Set the second parameter to OBJECT.
global $post; // 2. Access the global $post variable.
foreach ( $recent_posts as $post ) : // 3. Rename $post_item to $post
setup_postdata( $post ); // 4. Set up global post data. ?>
<div>
<?php if (!is_user_logged_in() && in_category(\'members\')) { ?>
<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
<img src="<?php bloginfo(\'template_directory\'); ?>/img/default-login.jpg" alt="<?php the_title(); ?>" />
</a>
<?php }
else if (is_user_logged_in() || !in_category(\'members\')) { ?>
<a href="<?php echo get_permalink($post_item[\'ID\']) ?>">
<?php echo get_the_post_thumbnail($post_item[\'ID\'], \'news-thumb\'); ?>
</a>
<?php } else { ?>
<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
<img src="<?php bloginfo(\'template_directory\'); ?>/img/default.jpg" alt="<?php the_title(); ?>" />
</a>
<?php } ?>
<a rel="bookmark" href="<?php echo get_permalink($post_item[\'ID\']) ?>" title="<?php the_title(); ?>">
<h6><?php the_title(); ?></h6>
</a>
<div><time datetime="<?php echo get_the_date(\'c\'); ?>">
<?php echo get_the_date(); ?></time>
</div>
<div>
<?php
$content = get_the_content();
$content = preg_replace("~(?:\\[/?)[^/\\]]+/?\\]~s", \'\', $content); # strip shortcodes, keep shortcode content
$trimmed_content = wp_trim_words( $content, 14, \'... <br /><a href="\'. get_permalink() .\'">Continue reading ></a>\' );
echo $trimmed_content;
?>
</div>
</div>
最合适的回答,由SO网友:Sally CJ 整理而成
如果要使用the_ 功能（例如。the_permalink() 和the_title()) 并包括in_category() （不指定第二个参数）循环外部（调用the_post()), 您应该访问全局$post 变量和调用setup_postdata() 要设置全局post数据，请在foreach 结束，通话wp_reset_postdata() 要恢复$post 返回到主查询中的当前帖子。
您还必须重命名$post_item 变量至$post 我也会使用OBJECT 作为的第二个参数值wp_get_recent_posts(), 虽然你真的可以setup_postdata( (object) $post ).
工作示例
$recent_posts = wp_get_recent_posts( array(
\'numberposts\' => 6, // Number of recent posts to display
\'post_status\' => \'publish\' // Show only the published posts
), OBJECT ); // 1. Set the second parameter to OBJECT.
global $post; // 2. Access the global $post variable.
foreach ( $recent_posts as $post ) : // 3. Rename $post_item to $post
setup_postdata( $post ); // 4. Set up global post data.
// ... your code here ..
echo ( in_category( \'members\' ) ? \'In\' : \'<b>Not</b> in\' ) . \' Members category\';
the_title( \'<h3>\', \'</h3>\' );
endforeach;
wp_reset_postdata(); // 5. Restore the $post variable.
记住，您需要更改
$post_item 在您的代码中
$post 和使用；箭头“；访问post数据，例如。
$post->ID 而不是
$post[\'ID\']! :)
