How can I clear the WordPress cache effectively?

Clear WordPress cache effectively using these methods:

• Via Plugin Interface: Use your caching plugin’s clear cache button
• Programmatically: Use WordPress functions like wp_cache_flush() for object cache
• Via WP-CLI: Run commands like wp cache flush
• Through Hosting Panel: Use host-provided cache clearing tools

For automatic cache clearing, add this code to your theme’s functions.php:

add_action(‘save_post’, ‘clear_page_cache’);
function clear_page_cache() {
  wp_cache_flush();
}

Remember to clear all cache layers (page, object, CDN) when making significant site changes.