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action is not described

before_delete_post action-hook . WP 3.2.0

Fires before a post is deleted, at the start of wp_delete_post().

Usage

add_action( 'before_delete_post', 'action_function_name_640' );
function action_function_name_640( $postid ){
	// action...
}
$postid(int)
Post ID.

Where the hook is called

wp_delete_post()
before_delete_post
wp-includes/post.php 2657
do_action( 'before_delete_post', $postid );

Where the hook is used (in WP core)

wp-includes/default-filters.php 462
add_action( 'before_delete_post', '_reset_front_page_settings_for_post' );