Form validation

If you click on “Know exactly what you want?” all the radio box lines have a red x when you send the form even if a value is selected adn I can’t see why

add_action('init','validate_radio');
function validate_radio() {
	remove_filter( 'wpcf7_validate_radio',
	'wpcf7_checkbox_validation_filter', 10, 2 );
	add_filter( 'wpcf7_validate_radio',
	'radio_validation_filter', 10, 2 );
}

function radio_validation_filter( $result, $tag ) {

	$name = $tag->name;

	$whatyouwant = isset( $_POST['whatyouwant'] ) ? trim( $_POST['whatyouwant'] ) : '';	

	$is_required = $tag->is_required() || $whatyouwant[0] !== "";
	$value = "";
	if (isset( $_POST[$name]))  {
		$value = $_POST[$name];
	}
		
	if ( $whatyouwant !== "" & $value == "" ) {
		$result->invalidate( $tag, wpcf7_get_message( 'invalid_required' ) );
	}

	return $result;
}

Is what I have added to the functions.php file

It doesn’t look as though $value is being set but I might be wrong

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