Select All Checkbox

[raamay]

I googled an found out only javascript doing the selecting of all checkbox in a form. Does that mean we there is no other ways to do it?

If only javascript can perform this operation, then how would it work to those who have disbled javascript. I avoid javascript most of the time, it is therefore i am looking for an alternative to perform the above cited operation. Please advise me!

[Dormilich]

I googled an found out only javascript doing the selecting of all checkbox in a form.

... therefore i am looking for an alternative to perform the above cited operation.

the description of your operation is a bit vague, maybe I can tell more with some additional details.

[raamay]

I have a page displaying some records and each record accompanied with checkbox. So, if i want to delete certain records i can check those records using the checkbox and perform delete operation in one go using a button. In this similar fashion, i also want a control by which i can check all checkbox at one go and delete if necessary.

[Dormilich]

since PHP is only executed on the server, user interactions are handled by Javascript.

To answer your question, there is no other way (as far as I see it).

[secmazec]

It would be much easier for all if you either describe your problem better or paste some code.

First name checkboxes logically from 1...N, so you can go trough all of them easily, something like this, and store how many you have in PHP ($cb_sum in my example):

<input type="checkbox" name="option_1" value="Milk"> Milk<br>
<input type="checkbox" name="option_2" value="Milk"> Milk<br>
<input type="checkbox" name="option_3" value="Milk"> Milk<br>

After the code, you need to store it in javascript, like:

<script>
var cb_sum = <? echo $cb_sum; ?>
</script>

And second part is really easy, you go from 1 to cb_sum in your javascript.

There is another way, if you need to have something like ID instead of 1..N in checkbox names, but that's more complicated.

[Markus]

You could use PHP to check all the boxes, if you are using PHP to generate the boxes and you don't mind a page refresh.

However, the amount of people not using javascript these days is incredibly small, and if they're not using it, it's their problem and not yours.

[Dormilich]

... and if they're not using it, it's their problem and not yours.

nevertheless, you may leave a note saying your page requires/operates best with JavaScript enabled.

[secmazec]

actually if you only need it in PHP, that's very easy:

$selected = array ('a', 'b', 'c'); // list of selected ids

echo "<input type=\"checkbox\" ";

if($id==$selected)
echo "checked "; // the magic :p

echo "value=\"$val\" name=\"$id\" id=\"$id\" />";

N'joy

PS: JavaScript is client based, so it's function depends on their PC and Browser, not server. Hope I've helped ;)

[Markus]

actually if you only need it in PHP, that's very easy:

$selected = array ('a', 'b', 'c'); // list of selected ids

echo "<input type=\"checkbox\" ";

if($id==$selected)
echo "checked "; // the magic :p

echo "value=\"$val\" name=\"$id\" id=\"$id\" />";

N'joy

PS: JavaScript is client based, so it's function depends on their PC and Browser, not server. Hope I've helped ;)

Of course that would have to be in a loop, otherwise you're comparing $id against an array. ;) Alternatively, you could use in_array().