{{notice: This function's solution will only work within the context of the Rails framework. }}
Rails has a series of helpers to help sanitize output. These are all in
ActionView's ActionView::Helpers::SanitizeHelper module. We can strip tags
from text in Rails using the sanitize method which takes a list of optional
tags or attributes as a whitelist.
{{code:php $content = "Test some tags"; $result = strip_tags($content, ''); var_export($result); // => 'Test some tags' }}
{{code:rails # in app/views/posts/index.html.erb <% @text = "Test some tags" %> <%= sanitize(@text, :tags => %w(em), :attributes => %w(style)) %> # => "Test some tags" }}
Rails also has helpers to sanitize_css, strip_tags, strip_links
{{related: strings/htmlspecialchars }}