小编Hie*_*inh的帖子

我正在尝试在帖子中的第一个 h2 标签之前插入广告。我尝试过的代码如下，但广告出现在内容之后而不是之前。我希望在内容之前插入广告，而不是在内容之后。

/*Insert ads after second paragraph of single post content.*/
add_filter( 'the_content', 'prefix_insert_post_ads' );

function prefix_insert_post_ads( $content ) {

    $ad_code = 'This is my ads';

    if ( is_single() && ! is_admin() ) {
        return prefix_insert_after_paragraph( $ad_code, 1, $content );
    }

    return $content;
}
//Parent Function that makes the magic happen
function prefix_insert_after_paragraph( $insertion, $paragraph_id, $content ) {
    $closing_p = '</h2>';
    $paragraphs = explode( $closing_p, $content );
    foreach ($paragraphs as $index => $paragraph) {

        if ( trim( $paragraph ) …