<?php
echo $_POST["check"][2];
?>
2) the name/value pair will only be POSTed if it's checked, so that
would only work if the first two were checked.
Some people like to pair all their checkboxes with a hidden of the same
name, the hiddens value will be sent if the checkbox isn't checked.
The following method worked well for me using the ternary conditional operator (?:):
$step = (isset($_POST['step'])) ? $_POST['step'] : NULL;
isset checks to see if a field named 'step' was received thru a POST operation. The statement creates a variable named $step. If the field 'step' was passed, it sets $step to it's value. If the field 'step' was not passed, it sets $step to NULL (you could set it to anything you wanted).
Be sure you keep it straight whether the field you are looking for was passed by a POST or a GET. If the field is appended on the URL, use $_GET['fieldname']. It is possible to receive formfields through a POST operation and fields on the URL (use GET) at the same time.
LInda Hobbet