# Highlighter

`Xmf\Highlighter` is a class used to highlight terms in text. It's most common use is highlighting search terms in content.

## Highlighter::apply(*$words*, *$body*, *$pre*, *$post*)

Apply a highlight to any occurrences of *$words* found in the *$body* text, surrounding each with *$pre* in front and *$post* behind. Considers only occurrences of words outside of HTML tags.

*$words* is an array of strings to find and highlight. If it is a string, it is treated as a set of space delimited words and converted to an array of strings.

*$body* is text to which highlight is to be applied.

*$pre* is the markup to be used to start a highlight. By default, it is "".

*$post* is the markup to be used to start a highlight. By default, it is "\</strong>".

The highlighted version of *$body* is returned.