织梦DedeCMS文章标题自动加长尾关键词的实现方法

if (!function_exists('autotitle')) {     function autotitle($title) {         $a = "百度影音";         $b = "迅雷下载";         $c = "快播";         $result = $title . $a . " " . $title . $b . " " . $title . $c;         return $result;     } }  if (!function_exists('wordtitle')) {     function wordtitle($title) {         static $arr = array('百度', '谷歌', '搜搜', '有道');         $return = "";         foreach ($arr as $value) {             $return .= $title . $value . " ";         }         return $return;     } }