帮我看看哪里写错了,谢谢
张阿鑫 2003-09-22 06:20:21 <html>
<title></title>
<body>
<blockquote>
<form> Today's Date: <? print(Date("l F d, Y")); ?><BR>
请输入ip:<INPUT TYPE="TEXT" name="host" value=<?php echo $host ?>>封包大小:<INPUT TYPE="TEXT" size=4 name="psize" value=<?php echo $psize ?>>次数:<INPUT TYPE="TEXT" name="count" size="2" value=<? echo $count ?> > <INPUT TYPE="SUBMIT" value="ping"> <br>
<hr>
<?php
if($sumbit)
{
if ($host == "")
{
$host = getenv("REMOTE_ADDR");
}
if ($count =="")
{
$count = 4;
}
if ($count > 20)
{
$count = 20;
}
if ($psize == "")
{
$psize = 56;
}
if ($psize > 1500)
{
$psize =1500;
}
echo "开始ping".$host."请等待。。。。。。";
}
?> </form>
<pre>
<?php
flush();
$list = `ping -n $count -l $pszie $host`;
print $list;
print $host;
?>
</pre>
<hr>
</BLOCKQUOTE>
</body>
</html>