Using WordPress ‘current_filter()’ PHP function
The `current_filter()` function in WordPress retrieves the name of the current filter hook being run
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Using WordPress ‘add_shortcode()’ PHP function
The `add_shortcode()` function in WordPress allows developers to create their own custom shortcodes using a callable function and optional attributes
Using WordPress ‘add_rewrite_endpoint()’ PHP function
The `add_rewrite_endpoint()` function in WordPress adds an endpoint to the rewrite system, allowing developers to create custom endpoints with specific rules and parameters
Using WordPress ‘add_posts_page()’ PHP function
The `add_posts_page()` function in WordPress allows developers to add a submenu page to the "Posts" main menu in the WordPress admin area