/* No-index posts older than 90 days if in PR custom post type */

function noindexOldPRs() {
	$url = 'http://' . $_SERVER[ 'HTTP_HOST' ] . $_SERVER[ 'REQUEST_URI' ];
	$current_post_id = url_to_postid( $url );
	
	$publishdate = get_the_time('Y-m-d', $current_post_id);
	$posttype = get_post_type ($current_post_id);
	
	if ($posttype == "pr") {
		$ninetydaysago = date("Y-m-d", strtotime("-90 days"));
		if($publishdate < $ninetydaysago) {
			echo '<meta name="robots" content="noindex">';
		}
	} elseif (has_tag('nonnews', $current_post_id)) {
		echo '<meta name="Googlebot-News" content="noindex, nofollow">';
	}
	
	//add noindex/nofollow for google news bot
	// get tags
	// if a tag includes nonnews
	// then add
	// <meta name="Googlebot-News" content="noindex, nofollow">

}
add_action('wp_head', 'noindexOldPRs');