如何查询页面内容并将特定文本与Wordpress中的帖子标题进行比较？

Question

I'm trying automatically replace text on a page with a link if a line of text matches a post title. I have a magazine website with pages for each issue and with table of contents on it as a page content, also I have posts with articles (sometimes they can have 1-2-3 published articles for each issue). I want Wordpress to query through ToC text on an issue page and see if any of the titles (for now lines separeted with just
) match titles of the posts (article) and if so replace the title with a link to an article. Is there a nice way to do it? Will appreciate any input.

Answer 1

I think you looking for this. Put below function in function.php

<?php
        function my_function( $post_id ){                
            if ( ! wp_is_post_revision( $post_id ) ){

                // unhook this function so it doesn't loop infinitely
                remove_action('save_post', 'my_function');

                // update the post, which calls save_post again     
                $content_post = get_post($post_id);
                $arr = get_post_meta($post_id, 'link-array', false);
                foreach ($arr as $key => $value) {
                 $post_title_updated=str_replace( $key, $value, $content_post->post_title);
                $post_content_updated=str_replace($key, $value, $content_post->post_content);
                 }

                      $my_post = array(
                          'ID'           => $post_id,
                          'post_title'   => $post_title_updated,
                          'post_content' => $post_content_updated,
                      );

                    // Update the post into the database
                      wp_update_post( $my_post );

                // re-hook this function
                add_action('save_post', 'my_function');
            }
        }
        add_action('save_post', 'my_function');
        ?>

for custom fields operation check link Custom Fields