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index1.php

HTML
  1  <html lang="en">
  2    <head>
  3      <link rel="stylesheet" href="style.css">
  4      <title>Files Upload and Download</title>
  5    </head>
  6    <body>
  7      <div class="container">
  8        <div class="row">
  9          <form action="index.php" method="post" enctype="multipart/form-data" >
 10            <h3>Upload File</h3>
 11            <input type="file" name="myfile"> <br>
 12            <button type="submit" name="save">upload</button>
 13          </form>
 14        </div>
 15      </div>
 16  	<table>
 17  <thead>
 18      <th>ID</th>
 19      <th>Filename</th>
 20      <th>size (in mb)</th>
 21      <th>Downloads</th>
 22      <th>Action</th>
 23  </thead>
 24  <tbody>
 25  
 26  
 27  <?php
 28  
 29  $id=$row['id'];
 30  $name=$row['name'];
 31  $size=$row['size'];
 32  $downloads=$row['downloads'];
 33  
 34  
 35   $arr = array('id', 'name', 'size', 'downloads');
 36  foreach ($files as &$file) {
 37      $file = $file * 1;
 38  }
 39  
 40  ?>
 41  
 42   
 43  
 44  
 45    
 46      <tr>
 47        <td><?php echo $file['id']; ?></td>
 48        <td><?php echo $file['name']; ?></td>
 49        <td><?php echo floor($file['size'] / 1000) . ' KB'; ?></td>
 50        <td><?php echo $file['downloads']; ?></td>
 51        <td><a href="downloads.php?file_id=<?php echo $file['id'] ?>">Download</a></td>
 52      </tr>
 53   
 54  
 55  </tbody>
 56  </table>
 57    </body>
 58  </html>


What I have tried:

have tried to put
<?php endforeach;?>
but i still get the same problem
Posted
Updated 14-Feb-21 6:23am
v2

1 solution

Quote:
Notice: undefined variable: row in C:\wamp64\www\johnsite\downloadfile\index1.php on line 31, can you help me to solve this problem?

Short answer: No, we can't.
You have
PHP
$id=$row['id'];
$name=$row['name'];
$size=$row['size'];
$downloads=$row['downloads'];

For us, $row comes from nowhere. Only you can track you app, where is it supposed to come from ? how is it defined ?
We can't answer those questions.

Your code do not behave the way you expect, or you don't understand why !

There is an almost universal solution: Run your code on debugger step by step, inspect variables.
The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't know what your code is supposed to do, it don't find bugs, it just help you to by showing you what is going on. When the code don't do what is expected, you are close to a bug.
To see what your code is doing: Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute.

Debugger - Wikipedia, the free encyclopedia[^]

Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^]
Basic Debugging with Visual Studio 2010 - YouTube[^]

phpdbg | php debugger[^]
Debugging techniques for PHP programmers[^]

The debugger is here to only show you what your code is doing and your task is to compare with what it should do.
 
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