using dynamic checkbox name in code

[CathyM]

Hello,

I've inherited code which name dynamically created checkbox
<input type='checkbox' name='selectedID[22]' />

with the number '22' changing based on id.

I've tried using the checkbox name in code as in

if (isset($_POST['sprintf("selectedID[%s]", $id)']))

or

if (isset($_POST['selectedID[' . %s . ']', $id)']))

even hardcoding it as

if (isset($_POST['selectedID[22]']))

but all the if statements evaluate to false. How do I get to use the checkbox name in code?

thanks

[crmalibu]

$_POST['selectedID'][22]

[CathyM]

thanks, worked perfectly