You have gaps in your knowledge of how data is structured in WordPress. In WordPress all pages/posts etc are ‘posts’ and have a type.
For example:
- ‘post’ posts are blogposts
- ‘attachment’ posts are images/videos/audio/uploads
- ‘page’ posts are pages
Post types tend to have their own section in the menu on the left of the admin interface. You can add your own too, search for custom post types for how.
In the code you referenced there is a query that grabs all the posts of a certain type, so that it can then loop over them and fix each ones excerpt. It does this by specifying a post_type of ‘post’ for standard blog posts/news:
'post_type' => 'post'
This needs to change to the page
post type if you’re wanting to use it on pages.
Related Posts:
- How do I set the default admin sort order for a custom post type to a custom column?
- How can I change the admin search posts fields?
- Development of a WordPress Search Plugin – Best Practices
- Admin Area Custom Type Search By Meta Fields Without Title & Content
- WordPress 4.4+ : How to revision CPT + metadata
- WP_Query orderby custom field then post_date in one query
- Using Custom Fields in Custom Post Type URL
- Query custom post type by custom field
- Adding meta values to permalink
- Filter a custom field based on selection of another custom field (ACF) [closed]
- How to get custom metabox image field?
- Using custom field as custom post title
- Detect meta value changes when post is updated (post_updated)
- Search everything (posts, pages, tags, cpt, meta)
- Custom field being erased after autosave
- front end radio custom taxonomy with custom post type
- How to get source of custom meta image?
- Get post info inside modal window?
- Add Taxonomy Values Within a Custom Post Type RSS Feed
- delete custom post based on custom field date
- Displaying Meta Box Image
- Get_post_meta() won’t return value
- Having trouble with custom date field for CPT query (WordPress)
- How to retrieve custom field types for all posts in WordPress/PHP?
- Custom field default value with counter
- wp parse_query not working with custom meta value
- How to use custom fields to enable sticky posts on custom post types?
- Custom meta fields for specific custom type only
- Custom Fields vs Separate Table
- Check if a specific custom field exists?
- WordPress Create Post from front-end
- How to insert content from another Custom Post type into Post?
- Using several custom fields as custom post title
- Copy custom field value to post title
- Custom Post Type + 20k posts = blank/404 within Admin edit.php [duplicate]
- Display custom fields on post excerpt or teaser
- WP_Query orderby modified to include custom meta changes
- How to bulk copy custom fields between custom posts?
- Calculate all custom field values in the post loop
- add custom field to custom post type
- Get image post ID in media upload
- Having unique constraints for custom fields in a custom post type
- Display custom fields from custom posts in RSS feed
- A better way to add a meta box to custom post types
- Rows with custom columns not well formatted after Quick Edit save
- How do I set all of a particular post meta to a value within the custom post type I’m in?
- Can we create a custom post template for a specific page template
- Settings API – save multiple tabs at once
- Send a conditional email notification when a custom field value changes in Post Type
- Add post meta programmatically to attachment
- How to create multiple editor?
- Display post from a date range from custom field
- List of users that clicked a ‘Join’ button at single post
- Get Specific Template Part if Custom Field is Some Value
- Targeting categories in custom fields
- Custom taxonomies to define versions of a product
- Getting a custom post’s custom field based on another custom post’s custom field select
- Inserting custom fields into single.php
- How to make a pulldown menu display custom meta terms in a theme?
- Proceed to the next video of the custom post type but remain on the same post
- search custom post type by custom fields on front end
- Change WordPress custom field default calendar [closed]
- How to show custom field on specific custom post type posts only when filled
- Make a custom column sortable by a value from a different custom post type
- Filtering Custom Post Type by Comparing Date and Two Meta Keys
- How to prevent meta data from being edited in a post?
- Automatically add a character to field in edit post page
- How to keep a record of changes to a custom field?
- Making a form for user to add new custom post with custom taxonomies and custom fields
- Saving metabox keys and storing values as array
- Mandatory field in Custom post
- Update value inside array update_post_meta
- WP query_posts group by meta field related
- How to store the third party script with HTML code in the wordpress custom input field?
- WP Query from two Custom Post type fields as statement
- Filter custom post type admin list by custom meta column, where the column is another custom posts meta value
- How to upload an image to a custom post type
- when looping through custom post data not appearing
- Where is get_post_meta value located?
- Adding a Section for Visitors
- Automatic Set Category For A Custom Post Type
- Confused about where to store my data
- Sort loop by custom field from different post type
- Meta_query by date for Events archive
- WordPress loop, show only one post per custom field
- Generate slug and meta data if meta field is empty
- one get_posts to return a number of custom posts for each meta value
- Is it possible to make one of two custom fields in Custom Post Type UI Required but not the other?
- Custom Post Type as invoice or order template
- WP_Query get posts where post_name is empty
- Make each Value of custom field show related posts when clicked
- Filter CPT based on meta box value using Flexible Posts widget?
- Advanced search form with filters for custom taxonomies and custom fields
- Querying meta values within an array
- Creating entries with image attachements within posts and managing them in a list
- How to Create a Frontend Html-list Editable in the Backend?
- How to grab data (titles, thumbnails and custom fields) from multiple posts to populate a new array efficiently?
- Filter Custom post type by another Custom post type
- Retrieve a post with its ACF repeater fields in wordpress
- Custom Sort Order for Custom Post Type Taxonomy