以下这段代码可以把指定的远程网页写到指定的目录下吗?

<?php
$filename="ip.php";
$fp=fopen($filename,"r");
$content=fread($fp,filesize("ip.php"));
$fp1=fopen("./flash/ipcopy.php","w");
fwrite($fp1,$content);
fclose($fp1);
fclose($fp);
?>