一个php作的文本留言本的例子(三)

上两节我针对guest.php和edit.php作了讲述.需要注意的是php和html的区别:
php通常是-->(1)<? echo("zihanonline");?>
(2)<? php
echo("zihanonline");
?>
(3) (4)<% echo("zihanonline");%> 等4种方式.不要混淆. 下面我们来研究信息管理:manage.php代码. \----------- //manage.php echo "<meta http-equiv=Refresh content=5;url=guest.php>";
echo "

exit;
}

?>

exit;
}

if ($password==$managepwd)
{
$guest_content=file($guestfile);
$count=count($guest_content);
for ($j=1;$j<=$count;$j++)
{
$del_rec_num="check".$j;
$del_num=$$del_rec_num;
//echo "$del_num:$del_num";
$guest_content[$del_num-1]="";
}

$fp=fopen($guestfile,"w");
for ($i=0;$i<=$count-1;$i++)
{
if ($guest_content[$i]!="")
{
fputs($fp,$guest_content[$i],strlen($guest_content[$i]));
}
}
fclose($fp);
echo "<meta http-equiv=Refresh content=5;url=guest.php>";
echo "

      <input type=reset value=重写 name=reset>   
  </td>   
<tr>