用php写的serv u的web申请账号的程序

<?//Sign.php//系统适用于win2000$path="e:\\serv-u\\ServUDaemon.ini";//用户文件的路径$fabu="e:\\web\\";//总web路径if($add){$fp1=fopen($path,"r+");$str=fread($fp1, filesize($path));$fp=fopen($path,"a");flock($fp,3);$us="=".$userid;$start=strpos($str,$us);if($start) {echo "对不起,该用户已经存在"; }else{