content_save_pre хук-фильтр . WP 1.0

This filter is documented in wp-includes/post.php

add_filter( 'content_save_pre', 'filter_function_name_1431' );
function filter_function_name_1431( $wp_slash ){
	// filter...

	return $wp_slash;
}

content_save_pre

$menu_item_value['description'] = wp_unslash( apply_filters( 'content_save_pre', wp_slash( $menu_item_value['description'] ) ) );

add_filter( $filter, 'convert_invalid_entities' );

add_filter( $filter, 'balanceTags', 50 );

add_filter( 'content_save_pre', 'wp_filter_post_kses' );

remove_filter( 'content_save_pre', 'wp_filter_post_kses' );