Question

This is my Code. I know, the while loop will work only once. But foreach does not loop after fetching one value, i.e if I am selecting 3 checkboxes. Only one will pass the values.

if(!empty($_POST["list"]))  
      {  
$connect = @mysql_connect("localhost","***","***") or die (" this error");
mysql_select_db("edu_info")or die ("database does not exist"); 


          foreach($_POST["list"] as $list=> $val)  
           {  


$query=mysql_query("select * from students where id='$val' limit 1");

while($row=mysql_fetch_assoc($query))
{
$user=$row['username'];
$number=$row['pphone'];
$name=$row['name'];
$pname=$row['pname'];
}
echo $user;
echo $number;
echo $name;
echo $pname;
    }
    }

This is my checkbox in html. The number of checkboxes is not fixed, it depends upon the query.Code below is just to get multiple checkboxes

    {
        <input type="checkbox" name="list[]" value="<?php echo $id; ?>
    }

Why is foreach not fetching values from all the selected checkboxes. Please help. Thanks in advance. :)

Answer 1

在我看来，你的while循环每次都会覆盖这些值。我没有看到你在检索的值上做了什么，因此，例如：

$user=$row['username'];

可能正在执行三次，但每次都会覆盖之前的值。它总是给你最后选择的值，对吧？如果是这样，那是因为你设置了$user三次，并且只有在最后一次之后才用它做任何事情。

While loop working only once inside for each php

1 个答案: