public static function getInstance()
 {
     if (!self::$instance instanceof self) {
         self::$instance = new self();
     }
     return self::$instance;
 }
Example #2
0
/**
 * keyword_encode
 * Adds keyword decorators to specified block
 * 
 * @param string $content - the HTML or text block to encode
 * @param string $selector - optional - limit HTML encoding to specified css selector
 * @return encoded HTML or text block
 * @author Brent Shaffer
 */
function keyword_encode($content, $selector = null)
{
    return SeoKeywordToolkit::getInstance()->parseBlock($content, $selector);
}