/**
* Apply highlight to words in body text
*
* Surround occurances of words in body with pre in front and post
* behing. Considers only occurances of words outside of HTML tags.
*
* @param mixed $words words to highlight
* @param string $body body of html text to highlight
* @param string $pre string to begin a highlight
* @param string $post string to end a highlight
*
* @return string highlighted body
*/
public static function apply($words, $body, $pre = '<strong>', $post = '</strong>')
{
if (!is_array($words)) {
$words = str_replace(' ', ' ', $words);
$words = explode(' ', $words);
}
foreach ($words as $word) {
$body = Highlighter::splitOnTag($word, $body, $pre, $post);
}
return $body;
}
