Question

I have a form on my website, but I have a problem passing the value of the checkbox.

I get the following error…

Notice: Undefined index: upgradeable in /var/www/vhosts/domain.com/httpdocs/***/includes/modules/admin.php on line 324 Unexpected error.

var_dump shows these errors…

Notice: Undefined index: upgradeable in /var/www/vhosts/domain.com/httpdocs/***/includes/modules/admin.php on line 325 NULL Notice: Undefined variable: upgradeable in /var/www/vhosts/domain.com/httpdocs/***/includes/modules/admin.php on line 327 Unexpected error.

My checkbox looks like this…

<input type="checkbox" name="upgradeable" class="" value="<?php echo $membership['upgradeable']; ?>" >

On admin.php line 324, looks like this…

$upgradeable = inputFilter($_POST['upgradeable']);

Can anyone please help me find the error.

Answer 1

The values of a checkbox are only sent if the checkbox is actually set to checked. If it is not checked, then the value is not set at all, so $_POST['upgradable'] will be undefined.

Try this:

$upgradeable = isset($_POST['upgradeable']) ? inputFilter($_POST['upgradeable']) : '';