Your function should look something like this
function my_custom_function( $html, $content ) {
$html .= get_post_field('post_content', $post_id);
$html = "<div class="post">" . $html . "</div>";
return $html;
}
Your function should look something like this
function my_custom_function( $html, $content ) {
$html .= get_post_field('post_content', $post_id);
$html = "<div class="post">" . $html . "</div>";
return $html;
}