BUFXIX: check array values not array

git-svn-id: https://plugins.svn.wordpress.org/upprev/trunk@889879 b8457f37-d9ea-0310-8a92-e5e31aec5664
#IMPROVMENT
add links to documentation


git-svn-id: https://plugins.svn.wordpress.org/upprev/trunk@889880 b8457f37-d9ea-0310-8a92-e5e31aec5664