Create a Custom Function to Limit WordPress Post Revisions

Solution to Limit WordPress Post Revisions

Custom Code Solution

Add this code to your theme's functions.php file or in a site-specific plugin to limit post revisions:

This code sets a maximum number of revisions WordPress will keep for each post:

define('WP_POST_REVISIONS', 5);

For more control, this code allows you to set different revision limits for different post types:

function limit_post_revisions($num, $post) {
    switch ($post->post_type) {
        case 'post':
            return 5; // Keep 5 revisions for posts
        case 'page':
            return 3; // Keep 3 revisions for pages
        default:
            return 2; // Keep 2 revisions for other post types
    }
}
add_filter('wp_revisions_to_keep', 'limit_post_revisions', 10, 2);

To completely disable revisions for specific post types:

function disable_revisions_for_post_types() {
    remove_post_type_support('post', 'revisions');
    remove_post_type_support('page', 'revisions');
}
add_action('init', 'disable_revisions_for_post_types');

WordPress Configuration File Method

Alternatively, you can add this line to your wp-config.php file (place it before the "/* That's all, stop editing! */" line):

define('WP_POST_REVISIONS', 5);

Plugin Solutions

If you prefer using a plugin, here are reliable options:

1. Revision Control

   • Set revision limits per post type
   • Delete old revisions
   • User-friendly interface

2. Simple Revisions Delete

   • Basic revision management
   • One-click revision cleanup

Important Notes

• After implementing any of these solutions, old revisions will remain in the database
• To remove existing revisions, you'll need to clean them up manually or use a plugin
• Choose a reasonable number of revisions (3-5 is usually sufficient)
• Test the solution on a staging site first
• Back up your database before making any changes