meta_query

example of meta query

$meta_query = array(
	'relation' => 'AND',
	array(
		'key'     => 'test-meta',
		'value'   => 'meta-value',
		'compare' => 'LIKE',
		'type'    => 'CHAR',
	),
	array(
		'key'     => 'test-meta2',
		'value'   => 'test-meta-value2',
		'compare' => '>=',
		'type'    => 'NUMERIC',
	),
	array(
		'key'     => 'test-meta3',
		'value'   => 'test meta value',
		'compare' => 'BETWEEN',
		'type'    => 'NUMERIC',
	),
);