---------------------------------------------------- [ ["markup", [ ["tag", [ ["tag", [ ["punctuation", "<"], "div" ]], ["attr-name", [ "class" ]], ["attr-value", [ ["punctuation", "="], ["punctuation", "\""], "foo", ["punctuation", "\""] ]], ["punctuation", ">"] ]] ]], ["markup", [ ["tag", [ ["tag", [ ["punctuation", ""] ]] ]] ] ---------------------------------------------------- Checks for markup in PHP.