PHP: How To Highlight Search Without Affecting HTML Tags

This class enables you to highlight keywords in the search results without affecting HTML tags. It can exactly highlight the string in double quotes of the keyword. For example:

$highlightedString = Fete_Util_Text_Highlighter::createInstance('<b>', '</b>')
->highlight('PHP rules the world', '"PHP rules" world'); // prints <b>PHP rules</b> the <b>world</b>

The class has been updated at http://www.phpclasses.org/browse/package/5471.html, it now can ignore the text within <style> and <script> tags, follow that link to get updates. If you found any problem, please report it to me. Thanks.

Usage:

To create new instance:

$highlighter = new Fete_Util_Text_Highlighter();

or:

$highlighter = Fete_Util_Text_Highlighter::createInstance();

To change the text before and after keyword match:

$highlighter->setBeforeMatch('<strong>')->setAfterMatch('</strong>');

To get the keyword-highlighted text:

$highlighted = $highlighter->highlight($originalText, $yourKeyword);

Related Posts

No related posts.