php unexpected $end错误

function shxweb($web)
{
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$web);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
$h=array('User-Agent:Mozilla/5.0 (Linux; U; Android 2.2; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1','HTTP_ACCEPT:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8');
curl_setopt($ch,CURLOPT_HTTPHEADER,$h);
curl_close($ch);
}
function redo()
{
$str=file_get_contents("web.txt");
$arr=explode("n",$str);
foreach($arr as $row)
{
shxweb($row);
}
while($stop!=="stop")
{
$stop=file_get_contents(stop.txt);
redo();
sleep(30);
}
echo"stop";
?>

少了一个 }

你在倒数第一个</center>后面加一个

<?     }  ?>

就ok了，else后面没结束.