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PHP? ??? ?? ??? ??? ?? ??? ?????(2)

? ????? ???? ?? ??? ???? ?? ??? ???? ??? ?????.

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SQL ? SELECT? ?? ??????? ???? ?? ?? ??? ??? ?????.

<?php
$SQL="SELECT * FROM vote order by count desc";
$rs=mysqli_query($link,$sql);
while($rows=mysqli_fetch_assoc($rs))
{
?>
  <tr>
    <td align="center" bgcolor="#FFFFFF"><input type="checkbox" name="itm" value="<?php echo $rows["id"]?>" /><?php echo $rows["id"]?></td>
    <td align="center" bgcolor="#FFFFFF"><?php echo $rows["item"]?></td>
    <td align="center" bgcolor="#FFFFFF"><?php echo $rows["count"]?></td>
    <td align="center" bgcolor="#FFFFFF"><input type="button" value="修改" onclick="location.href='?type=modify&id=<?php echo $rows["id"]?>'" /></td>
    <td align="center" bgcolor="#FFFFFF"><input type="button" value="刪除" onclick="location.href='?type=del&id=<?php echo $rows["id"]?>'"  /></td>
  </tr>
<?php  
}
?>

<input type="checkbox"/>? ???? ????? ???? ?? ??? ?????.

<input type="checkbox" name="itm" value="<?php echo $rows["id"]?>" />

???? ?? ? ??? ??? ID? ?? ?? ??? ????, ??????? ???? ?????.

<?php
$type = isset($_GET["type"])?$_GET["type"]:"";
if($type =="modify"){

$id=$_GET["id"];

  $item=$_POST["itm"];
  $count=$_POST["count"];
  $SQL="UPDATE vote SET item='$item',count=$count WHERE id=$id";
  mysqli_query($link,$sql);
  echo "<script language=javascript>alert('修改成功!');window.location='admin.php'</script>";
}
?>

?? ??? ???? id ?? ??? ??????? ???? ?????.

<?php
$type = isset($_GET["type"])?$_GET["type"]:"";
if($type =="del"){
  $id=$_GET["id"];
  $SQL="DELECT FROM vote WHERE id in ($id)";
  mysqli_query($link,$sql);
  echo "<script language=javascript>alert('刪除成功!');window.location='admin.php'</script>";
}
?>


???? ??
||
<?php $sql="select * from vote order by count desc"; $rs=mysqli_query($link,$sql); while($rows=mysqli_fetch_assoc($rs)) { ?> <tr> <td align="center" bgcolor="#FFFFFF"><input type="checkbox" name="itm" value="<?php echo $rows["id"]?>" /><?php echo $rows["id"]?></td> <td align="center" bgcolor="#FFFFFF"><?php echo $rows["item"]?></td> <td align="center" bgcolor="#FFFFFF"><?php echo $rows["count"]?></td> <td align="center" bgcolor="#FFFFFF"><input type="button" value="修改" onclick="location.href='?type=modify&id=<?php echo $rows["id"]?>'" /></td> <td align="center" bgcolor="#FFFFFF"><input type="button" value="刪除" onclick="location.href='?type=del&id=<?php echo $rows["id"]?>'" /></td> </tr> <?php } ?>