getting checkbox value through $_POST

BIOSTALL

Hey.. i have a checkbox called chkvisible. If the checkbox is checked when the form is submitted, i want the number 1 to be written to my database and if its not checked... then the value 0 written to the database.

I'm getting the value of the checkbox via $_POST['chkvisible'] but i thought it shud be either 1-checked or 0-unchecked... i'm getting 0 for checked and "" (empty) for unchecked :-S Anybody tell me why this is??

Many thanks, BIOSTALL

toplay

Well, it depends on the value you put in the HTML!

This will return a one if it's checked:

<input name="chkvisible" value="1" type="checkbox">Visible

🙂

BIOSTALL

ok... so i've got this when first displaying the form:

<input name="chkvisible" type="checkbox" id="chkvisible" value="0">

And this when checking if the checkbox is checked or not:

$emailvis = $_POST['chkvisible'];

$email visible is equalling 0 when checked and empty when unchecked. I can't figure out why

BIOSTALL

toplay

I thought that I was clear in my previous post, but I guess not. Let me write it out for you.

Have this in your HTML (notice the "1"):

<input name="chkvisible" type="checkbox" id="chkvisible" value="1">

Then in PHP do something like this:

// If chvisible is one, then $emailvis will be one, otherwise zero is assigned
$emailvis = (isSet($_POST['chkvisible']) && '1' == $_POST['chkvisible']) ? 1 : 0;

hth.