content_save_pre хук-фильтрWP 1.0

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

Использование

add_filter( 'content_save_pre', 'wp_kama_content_save_pre_filter' );

/**
 * Function for `content_save_pre` filter-hook.
 * 
 * @param  $wp_slash 
 *
 * @return 
 */
function wp_kama_content_save_pre_filter( $wp_slash ){

	// filter...
	return $wp_slash;
}
$wp_slash
-

Где вызывается хук

WP_Customize_Nav_Menu_Item_Setting::sanitize()
content_save_pre
wp-includes/customize/class-wp-customize-nav-menu-item-setting.php 725
$menu_item_value['description'] = wp_unslash( apply_filters( 'content_save_pre', wp_slash( $menu_item_value['description'] ) ) );

Где используется хук в WordPress

wp-includes/default-filters.php 146
add_filter( $filter, 'convert_invalid_entities' );
wp-includes/default-filters.php 147
add_filter( $filter, 'balanceTags', 50 );
wp-includes/kses.php 2226
add_filter( 'content_save_pre', 'wp_filter_global_styles_post', 9 );
wp-includes/kses.php 2230
add_filter( 'content_save_pre', 'wp_filter_post_kses' );
wp-includes/kses.php 2256
remove_filter( 'content_save_pre', 'wp_filter_global_styles_post', 9 );
wp-includes/kses.php 2260
remove_filter( 'content_save_pre', 'wp_filter_post_kses' );