I think has_category() should help you.
function info_after_post($content){
if (is_single() && ! has_category(71)) {
$content .= 'AD CODE';
}
return $content;
}
add_filter( 'the_content', 'info_after_post' );
Related Posts:
- Display random categories on the front page (Finding and Editing Theme Functions)
- How to add classes to images based on their categories?
- current_cat_ancestor Alternatives
- Add body class of category parent
- Changing a function in function.php to a shortcode – for listing categories of only a certain post type
- Php string not working in WordPress Functions.php (trying to fetch 1st category for each blog that post appears in the sidebar)
- Add class to Categories Widget
- How to Acheive the custom woocommerce category template
- How to add a rel attribute to images that contains their categories?
- How to set child post categories to parent post categories when updating parent post?
- Assign category using custom field?
- How To Get WordPress Categories Link List?
- Changing post category from dropdown
- Manipulate Output of wp_list_something: select menu instead of li’s
- Make Categories a Dropdown Menu in Media Library
- Programmatically Create Category and sub Category
- Attach parent category template to all subcategories
- exclude a category from a search on a specific page
- Get the category name outside of the loop in category.php
- Is it possible to change any of the HTML/URL returned from the_category()
- Custom HTML in specific category single page and its descendant categories
- Possible to display shortcode based on the category?
- Unset Category if other Category is unset during post transition
- Select pages by category
- Show Primary Category first when I display post categories
- How do I hide or remove ‘Category’ from wordpress breadcrumbs
- Ordering posts by publish date not working?
- Categories as main menu items and subcategories as nested lists
- Get category URL for current post
- Need help “sanitizing” a custom function that pulls category slug into body class
- allow only one post in specific category
- How to obtain the recent posts without their content in an efficient way?
- Setting a default text for excerpts of a particular category
- Running script based on Category
- Remove a category from a post when saving a new post
- How to fix get_the_category function returning incorrect slug?
- Return category name with & Ampersand doesnt work
- Access category within rss2_head hook?
- issue with if/elseif in_array inside foreach loop display only one post
- Randomizing wp_tag_cloud() in child theme
- add_filter to specific WooCommerce Category
- How to rewrite wordpress search to work on specific category
- Image loading function not working on archive.php template
- Problem with calling custom function in a foreach loop
- Specify multiple categories for custom post template – FATAL ERROR
- “All posts” in the category widget
- Get Attachment Category Name
- WordPress Categories: Function using custom SQL to return array of specific category IDs
- Display ACF category image on archive and single template files
- Get slug of current category in functions.php
- Display a list of random terms from custom taxonomy with shortcode
- Change category display name function
- Display link to category over featured image
- Remove the ‘category’ url for one category type
- Custom Function.PHP Code Not Working on One Site
- Adding new Category does not refresh the backoffice
- How do i tweak my wp Post title base on category of the post
- how to remove a tag in the_category function
- Menu and category highlighting for a single post
- i can’t use wordpress functions in ajax loaded php file
- Graphic before title – Specific Category
- require_once() Causing categories and tag pages on dashboard to not refrsh
- different body classes for each category
- How To Get WordPress Categories Last Update Date?
- How to get tags and categories?
- How to Insert A List of Posts in A Category Written by the Author into the Author Archive
- Removing all Category pages with one exception
- Get category of post inside save_post hook
- Exclude a category ID from the following function
- I am looking for a function to create category links in the wordpress loop for articles
- Override categories with Pages (block theme)
- Output parent/child categories and posts in that parent/child hierarchy
- Check if post is being published for the first time, or is an already published post being updated
- List only child categories a post is in, of a specific parent category
- Enqueuing External Javascript functions.php
- Function to wrap the_content in a div
- Date/time limitation of posts where function must be executed
- Having issues with a foreach inside of a shortcode with ACF gallery
- Query Posts Exclude Entire Category
- PHP variable not regenerating when publishing multiple posts at the same time
- Is there an alternative to get_template_directory_uri()?
- Word Press – Dynamic Content [closed]
- Get page id or status by private pages?
- woocommerce change currency per category [closed]
- wp-admin won’t load after setting wp-login custom url
- Generate featured images old posts
- Use /prefix/postname as a slug in post_name?
- Send email to admin user when custom post type is created
- Pass variable from action back to template
- Test if a post exists by category and date
- two search forms on the same page
- Getting out side of wp root folder from function.php using absolute path
- Strange error from functions.php files (wp_register_script)
- How to setup a popup registeration page in wordpress with function.php
- How to display different blocks for mobile and desktops
- WP Enqueue Script Error
- Enqueue JS + CSS via a child theme functions.php file?
- Displaying Category in sidebar post widget but not in the loop on home
- Functions file mods and CPU
- How to display milliseconds instead of seconds using timer_stop function? [closed]