public static function set($buffer, $wordset=null) {
//先还原原始文本
$buffer = self::rip($buffer);
if (($wordset) && (is_array($wordset))) {
$seolinkdata = &$wordset;
} else {
self::getLinkData();
$seolinkdata = self::$linkdata;
}
//将文本中的链接保护起来
self::$links = array();
self::$linkcount = 0;
$buffer = preg_replace_callback('/((\<a|\[url).*?(\<\/a\>|\[\/url\]))/i', array('self', "storeLink"), $buffer);
//保持前n个字符不变
$prefix = "";
$matches = null;
if (self::$_min_preserve > 0) {
if (preg_match('/^(.{'.self::$_min_preserve.'}.*?)(\.|。|\<br\s*\/?\>|\n)(.*)$/is', $buffer, $matches)) {
$prefix = $matches[1];
$buffer = $matches[2].$matches[3];
}
}
$count = 0;
//将关键词替换为简短标识
$buffer = mb_convert_encoding($buffer, 'utf8', 'gbk');
mb_regex_encoding('utf8');
foreach($seolinkdata as $order => $item) {
$item['id'] = mb_convert_encoding($item['id'], 'utf8', 'gbk');
if (mb_eregi($item["id"], $buffer)) {
$buffer = mb_eregi_replace($item["id"], "<!--HDF:$order-->", $buffer, self::$_replace_limit);
$count++;
//记录到文件
//file_put_contents("/Data/cache/in/seolink.hits.log", "$item[id]\n", FILE_APPEND);
}
//超过最大次数则退出
if ((self::$_max_replace > 0) && ($count >= self::$_max_replace)) break;
}
$buffer = mb_convert_encoding($buffer, 'gbk', 'utf8');
//将简短标识替换为完整标识
if ($count) $buffer = preg_replace('/\<!\-\-HDF:(.+?)\-\-\>/e', "'<!--HAODF:'.\$seolinkdata[\${1}]['value'].'-->'.\$seolinkdata[\${1}]['id'].'<!--HAODF:/'.\$seolinkdata[\${1}]['value'].'-->'", $buffer);
$buffer = $prefix.$buffer;
//还原保护的链接
if (self::$linkcount > 0) $buffer = preg_replace_callback('/\{HDFSEOLINK\:(\d+)\}/', array('self', "restoreLink"), $buffer);
return $buffer;
}
