Question

每个页面刷新时，upcount和downcount列都会递增这应该不会发生它应该只发生在按钮点击我该怎么办？在这里，我实施了upvote和downvote机制

// upvote and downvote

<?php




if(isset($_POST['up']))

{
$string= $_POST['up'];
 $d= substr($string,0,2);
 $t = ltrim($d, '0');




$id1=$id;
$conn1=new mysqli('localhost','root','','forum') or die(mysql_error());
 $stmt1= $conn1->prepare("UPDATE messages SET upcount = (upcount+1) WHERE mid ='".$t."' ");



 $stmt1->execute();

        $stmt1->close();



}

if(isset($_POST['down']))

{
$string1= $_POST['down'];
 $d1= substr($string1,0,2);
 $t1 = ltrim($d1, '0');
 echo $t1;
 $conn1=new mysqli('localhost','root','','forum') or die(mysql_error());
  $queryd=mysqli_query($conn1,"SELECT upcount FROM messages where messages.mid='".$t1."'");
     $row=mysqli_fetch_assoc($queryd);
  $up=$row['upcount'];

  if($up>0)



$id1=$id;
$conn1=new mysqli('localhost','root','','forum') or die(mysql_error());
 if($up>0)
 {
$stmt2= $conn1->prepare("UPDATE messages SET downcount = (downcount+1)  WHERE mid ='".$t1."'");
 }


$stmt2->execute();

        $stmt2->close();

        $conn1->close();

}

Answer 1

在更新查询之后，您应该重定向到同一页面，这将清空http标头中发布的数据

Rack::Lock#call

每次刷新页面时的向上计数和向下计数递增？

1 个答案: