Multiple Meta Query example

$meta_query = array(
	'relation' => 'AND',
	array(
		'key'     => '_archive_cpt_page',
		'value'   => '$custom_post_type',
		'compare' => '=',
		'type'    => 'CHAR',
	),
	array(
		'key'     => '_position',
		'value'   => 'before',
		'compare' => '=',
		'type'    => 'CHAR',
	),
	array(
		'key'     => '_archive_taxonomy_page',
		'value'   => '$term_id',
		'compare' => '=',
		'type'    => 'CHAR',
	),
);