Tools -> Export | Failure when setting category

[kbpcit]

Hi,

Export of posts fails when exporting posts of a specific category. This probably has affect on other export settings as well.

File /wp-admin/includes/export.php, line 543 is supposed to echo the slug of the current category's parent. It is trying to get that data from the $cats variable, which normally contains all the categories, but it does not contain that data when limiting the posts to export to a specific category.

Current line 543:

<wp:category_parent><?php echo wxr_cdata( $c->parent ? $cats[ $c->parent ]->slug : '' ); ?></wp:category_parent>

Suggested fix:

<wp:category_parent><?php echo wxr_cdata( $c->parent && isset( $cats[ $c->parent ] ) ? $cats[ $c->parent ]->slug : '' ); ?></wp:category_parent>

Blessings,

Klaas