Question

I’ve gone through a solution on processing checkboxes and think I understand what I need to do, but I have a problem where I put my delete button in this code. Here is my table:

<table>
    <thead>
    <tr>
        <th>Camera Name</th>
        <th>Date Created</th>
        <th>Video Size</th>
        <th>Video Length</th>
        <th>
            <button type="submit" class="deletebutton" name="delete_video" value="Delete" title="Delete the selected videos" onClick="return confirm('Are you sure you want to delete?')">Delete</button><br>
            <input type="checkbox" name="radioselectall" title="Select All" />
        </th>
    </tr>
    </thead>
    <tbody>

 <?php

for($i=0;$i<$num_videos;$i++)
{
       //do stuff
       //Note: I'm looping here to build the table from the server
?>              
        <tr >
            <td onclick="DoNav('<?php echo $url; ?>');">
                        <?php echo $result_videos[$i]["camera_name"]; ?> 
            </td>
            <td onclick="DoNav('<?php echo $url; ?>');">
                        <?php echo setlocalTime($result_videos[$i]["video_datetime"]); ?> 
            </td>
            <td onclick="DoNav('<?php echo $url; ?>');">
                        <?php echo ByteSize($result_videos[$i]["video_size"]); ?>
            </td>
            <td onclick="DoNav('<?php echo $url; ?>');">
                <?php echo strTime($result_videos[$i]["video_length"]); ?>
            </td>
            <td>
                <form name="myform" action="<?php echo htmlentities($_SERVER['REQUEST_URI']); ?>" method="POST">
                <input type="checkbox" name="radioselect" title="Mark this video for deletion"/>
                <input type="hidden" name="video_name" value="<?php echo $result_videos[$i]["video_name"]; ?>" />
                </form>
            </td>
        </tr>
...

Notice that I loop through and populate the table from the server but the header is not looping through obviously. I used to put the delete button in the form and on each line of the table. But now since I want multi-delete I create checkboxes on each line and put the delete button in the header. I should also note that video_name is crucial so I know what videos to delete.

But that is the problem, since I don’t have a submit (delete) in the form (that is in the loop) I can’t process theses checkboxes. Instead I only have the delete button Can anyone suggest a better way to do this?

Answer 1

The form should go around the whole table, and rather than have a hidden input for the name you can have it in the checkbox’s name:

<input type="checkbox" name="radioselect[<?php echo $result_videos[$i]['video_name']; ?>]" />

Then, in your PHP script that receives the POST request, $_POST['radioselect'] will be an array. You can then use:

foreach(array_keys($_POST['radioselect']) as $k) { ... }

This will loop through the selected checkboxes. You get the video_name in $k and you can handle it as you would a single deletion.