ILIAS  trunk Revision v5.2.0beta1-5045-ga4b9cc0
 All Data Structures Namespaces Files Functions Variables Groups Pages
ILIAS Documentation

HTML Purifier is an HTML filter that will take an arbitrary snippet of HTML and rigorously test, validate and filter it into a version that is safe for output onto webpages. It achieves this by:

  1. Lexing (parsing into tokens) the document,
  2. Executing various strategies on the tokens:
    1. Removing all elements not in the whitelist,
    2. Making the tokens well-formed,
    3. Fixing the nesting of the nodes, and
    4. Validating attributes of the nodes; and
  3. Generating HTML from the purified tokens.

However, most users will only need to interface with the HTMLPurifier and HTMLPurifier_Config.