php and checkboxes

[Gasolene]

I have a script that has a default value for a checkbox, lets say it's checked.

now when the user submits, if the data does not validate, I want to restore the data that was just submitted.

if( isset( $_request['MyChkBox'] ))
{
    // this means checkbox was selected
}
else
{
    // however this could mean that the checkbox was unchecked inwhich case it should remain unchecked

// OR the form may not have been submitted in which case the checkbox should be checked (default)
}

Is there a way to check if the form was submitted without checking to see if other form data was submitted?

i tried
if( isset( $_REQUEST ))
but it always returns true.

[pohopo]

check to see if the form was submitted using the form id and isset.

[Gasolene]

sorry, i should mention that this piticular situation, I do not know what the form name, or id is.

[Gasolene]

figured out a solution

			if( isset( $_REQUEST['MyCheck'][0] ))
			{
				// form submitted
				if( $_REQUEST['MyCheck'][0] == '1' )
				{
					// checkbox checked
				}
				else
				{
					// checkbox unchecked
				}
			}
			else
			{
				// form was not submitted
			}

<input type="checkbox" value="1" name="MyCheck[]" />
<input type="hidden" value="0" name="MyCheck[]" />

[Gasolene]

another simpler solution

if( sizeof( $_REQUEST ) ){
// form submitted
}