[WordPress教程]在文章内容随机段落中插入广告

// 插入广告所需的功能代码function prefix_insert_after_paragraph( $insertion, $paragraph_id, $content ) { $closing_p = '</p>'; $paragraphs = explode( $closing_p, $content ); foreach ($paragraphs as $index => $paragraph) { if ( trim( $paragraph ) ) { $paragraphs[$index] .= $closing_p; } if ( $paragraph_id == $index + 1 ) { $paragraphs[$index] .= $insertion; } } return implode( '', $paragraphs );}//以下是广告代码修改位置add_filter( 'the_content', 'prefix_insert_post_ads' );function prefix_insert_post_ads($content){ $pattern = "/<p>.*?</p>/"; $paragraph_count = preg_match_all($pattern,$content); //计算文章的段落数量 if($paragraph_count >= 5 && is_single()){//如果文章的段落数量少于5段，则不会插入文章段落广告 $paragraph_count -=2; $insert_paragraph=rand(3,$paragraph_count); $ad_code = '<div>广告代码位置，自己修改</div>'; return prefix_insert_after_paragraph( $ad_code, $insert_paragraph, $content ); } return $content;}