WordPress 在文章随机段落中插入广告

WordPress 在文章随机段落中插入广告的实现方式很简单，只要把下面代码插入你主题的functions.php中即可实现（记得将：你的广告代码替换为你的广告内容）

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 >= 8 && is_single()){//如果文章的段落数量少于8段，则不会插入文章段落广告

$paragraph_count -=2;

$insert_paragraph=rand(3,$paragraph_count);

$ad_code = '<div>你的广告代码</div>';

return prefix_insert_after_paragraph( $ad_code, $insert_paragraph, $content );

}

return $content;

}

// 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 );

}