Is Tour

$is_tour = array(
	'relation' => 'OR',
	array(
		'key'     => '_is_tour',
		'value'   => 'on',
		'compare' => '=',
	),
	array(
		'key'     => '_is_tour',
		'value'   => '1',
		'compare' => '=',
	),
);