View Full Version : How to save multiple checkbox

08-23-2011, 05:18 PM
Running out of time here so here goes coz I have a defense the day after tomorrow. So here goes: Iím trying to save a multiple checkbox but somehow cant get it right.

<form method="post" action="<?php echo base_url()?>admin/requirements">
<table cellpadding="0" cellspacing="0" border="0" width="100%"><tbody>
<tr><td colspan="3"></td>
<td colspan="8" align="center"><font size="6px"></font>
<th width="150">Names</th><th width="40" style="font-size: 10px;">Projects</th>
<th width="40">Res</th><th width="40">Und</th><th width="40">WnP</th>
<th width="40">MOA</th><th width="40">DTR</th><th width="40">Doc</th>
<th width="40">Ref</th><th width="40">Pho</th><th width="40">Vid</th>
foreach($req_list->result() as $item){
echo "<input type='hidden' name='student[]' value='".$item->student_id."'>";
echo "<tr><td>".$item->fullname."</td>";
echo "<td><a href='".base_url()."admin/projects_view/".$item->g_id."'>Group ".$item->group_no."</a></td>";
echo "<td><input type='checkbox' name='res[]' value='1'></td>";
echo "<td><input type='checkbox' name='und[]' value='1'></td>";
echo "<td><input type='checkbox' name='wnp[]' value='1'></td>";
echo "<td><input type='checkbox' name='moa[]' value='1'></td>";
echo "<td><input type='checkbox' name='dtr[]' value='1'></td>";
echo "<td><input type='checkbox' name='doc[]' value='1'></td>";
echo "<td><input type='checkbox' name='ref[]' value='1'></td>";
echo "<td><input type='checkbox' name='pho[]' value='1'></td>";
echo "<td><input type='checkbox' name='vid[]' value='1'></td>";

echo "</tr>";
<div align="center">
<button type="submit" class="button" id="deleteb"><div><b>&nbsp;&nbsp;Save Setting&nbsp;&nbsp;</b></div></button>
<input type="hidden" name="save" value="save"/></div>


08-23-2011, 05:28 PM
Make all checkbox names the same ...
and give them different values ...

name='checkbox[]' value='res'
name='checkbox[]' value='und'
name='checkbox[]' value='wnp'


Read it in as one array ...


Loop through ... the array will only contain the ones that are checked ...

foreach($boxes as $item){
echo $item."<br />";


08-23-2011, 05:38 PM
First of all thanks for the reply.

I can't do that, since I'm pulling the data from my db. The rows in the table will contain at least 40 people with each 9 checkbox. Also the value must only be 1 or 0.

The module that I'm working right now is a Requirement Checker

08-23-2011, 07:08 PM
I'm not seeing the problem ...

To process the checkbox form:
make the values the name of your columns ...

name='checkbox[]' value='res'
name='checkbox[]' value='und'
name='checkbox[]' value='wnp'

When you do the table update, default them all to 0, then loop through
the checkbox[] array. Any of the values that appear (checkbox checked),
set them to a 1.

foreach($boxes as $item){

note: $$item (double $$) is deliberate.
"variable of a variable" ... so if the value of $item is "wnp", $wnp will be changed to a value of 1.

If your concern is reading the table and creating the form (with appropriate ones checked),
that's a different process.

Is your problem creating the form, or processing the form?


08-23-2011, 07:28 PM
ok, got your idea. Now how can I point the id of the row since I am updating the data in my table. My id is student_id and as you can see to my original post I've set it hidden in my input. Is it right?