//WordPress 实现自动记录死链地址
if(is_404() && strpos($_SERVER['HTTP_USER_AGENT'],'Baiduspider') !== false){
$file = @file("badlink.txt");//badlink.txt 就是在网站根目录的记录死链的文件
$check = true;
if(is_array($file) && !empty($file))
foreach($file as &$f){
if($f == home_url($_SERVER['REQUEST_URI'])."n")
$check = false;
}
if($check){
$fp = fopen("badlink.txt","a");
flock($fp, LOCK_EX) ;
fwrite($fp, home_url($_SERVER['REQUEST_URI'])."n");
flock($fp, LOCK_UN);
fclose($fp);
}
}