This tutorial contains examples of code which include the 5 different parameters you can customize with both the next_post_link and previous_post_link template tags.
The 5 parameters are:
- format – Default: « %link
- link – Default: %title
- in_same_term – Default: false
- excluded_terms – Default: None
- taxonomy – Default: ‘category’
The 1st example shows the previous and next posts entry titles and links all posts in all categories.
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get_the_post_navigation() and the_post_navigation() for navigation to the next and previous post. get_the_posts_navigation() and the_posts_navigation()` for navigation to the next and previous page of posts. get_the_pagination() and the_pagination() for paginated navigation between pages of posts. Uses paginate_links().