WordPress at a glance
filter is not described

wxr_export_skip_commentmeta filter-hook . WP 4.0.0

Filters whether to selectively skip comment meta used for WXR exports.

Returning a truthy value to the filter will skip the current meta object from being exported.

Usage

add_filter( 'wxr_export_skip_commentmeta', 'filter_function_name_5174', 10, 3 );
function filter_function_name_5174( $skip, $meta_key, $meta ){
	// filter...

	return $skip;
}
$skip(true/false)
Whether to skip the current comment meta.
Default: false
$meta_key(string)
Current meta key.
$meta(object)
Current meta object.

Where the hook is called

export_wp()
wp-admin/includes/export.php 602
if ( apply_filters( 'wxr_export_skip_commentmeta', false, $meta->meta_key, $meta ) ) {

Where the hook is used (in WP core)

Does not used.