如果一篇文章不超过200字，目标是在一篇文章下打印2篇文章。
我在WordPress得到了一些帮助，但是一些有帮助的人提供的代码我无法集成到一个无缝的整体中。
下面是基本代码，它可以工作，但不包括格式（它只是将整篇文章打印为一个段落）：
add_filter("the_content" , "add_2_articles_if_less_than_200");
function add_2_articles_if_less_than_200($content) {
global $post;
if($post->post_type == "post") {
$count = word_count($content);
if($count < 200) { //if count is less then 200 then add two more articles from the same category
$current_post_id = $post->ID;
$categries = wp_get_post_categories($current_post_id);
if(isset($categries[0])) {
$cat = $categries[0];
$args = array(
"cat" => $cat,
"posts_per_page" => 2,
"post__not_in" => array($current_post_id)
);
$qry = new WP_Query($args);
while($qry->have_posts()) {
$qry->the_post();
$content .="
<div class=\'additional_post\'>
<h3>".get_the_title()."</h3>
<div class=\'additional_post_content\'>".get_the_content()."</div>
</div>
";
}
wp_reset_query();
}
}
}
return $content;
}
function word_count($content) {
$word_count = str_word_count( strip_tags( $content ) );
return $word_count;
}
以下是打印文章格式的修改建议：
where you have
<div class=\'additional_post_content\'>".get_the_content()."</div>
replace with
<div class=\'additional_post_content\'>". $fmt_content ."</div>
and put this above it someplace
$unfmt_content = get_the_content();
$fmt_content = apply_filters(\'the_content\', $unfmt_content);
但是，您将这些建议的修改放在原始代码中的什么位置以使其工作？
（原始代码归Pramod Jodhani所有，修改建议归Steven Stern所有。）
SO网友:filipecsweb
您的代码即将完成，但缺少一个关键点。下面是完成此任务所需的全部内容（放入functions.php）：
function add_2_articles_if_less_than_200( $content ) {
global $post;
if ( $post->post_type == \'post\' ) {
// Use $post->post_content here as its content is raw - not formatted with HTML.
$count = mb_strlen( $post->post_content, \'UTF-8\' );
// If $count is less then 200 then add two more articles from the same category.
if ( $count < 20000 ) {
$current_post_id = $post->ID;
$current_post_categories = wp_get_post_categories( $current_post_id );
if ( ! empty( $current_post_categories[0] ) ) {
$qry = new WP_Query(
array(
\'cat\' => $current_post_categories[0],
\'posts_per_page\' => 2,
\'post__not_in\' => array( $current_post_id ),
)
);
if ( $qry->have_posts() ) {
while ( $qry->have_posts() ) : $qry->the_post();
// Remove this current function from tag `the_content` to avoid infinite loop. This is the key to make it work!
remove_filter( \'the_content\', \'add_2_articles_if_less_than_200\', 20 );
$filtered_post_content = apply_filters( \'the_content\', $qry->post->post_content );
// Add filter again, otherwise this whole function won\'t work.
add_filter( \'the_content\', \'add_2_articles_if_less_than_200\', 20 );
$content .= "
<div class=\'additional_post\'>
<h3>" . $qry->post->post_title . "</h3>
<div class=\'additional_post_content\'>$filtered_post_content</div>
</div>";
endwhile;
}
// Make sure you reset the query as your page does not end here.
wp_reset_query();
}
}
}
return $content;
}
// Use priority 20 to make sure your function will run after WordPress default filter to avoid issues.
add_filter( \'the_content\', \'add_2_articles_if_less_than_200\', 20 );
注意代码，尤其是它的注释！我希望它对你有用。
