More usage of dbm::is_result($r) instead of count($r):

- count() returns very different results and never a boolean (not even false on
  error condition).
- therefore you should NOT use it in boolean expressions. This still *can* be
  done in PHP because of its lazyness. But it is discouraged if it comes to
  more clean code.

Signed-off-by: Roland Häder <roland@mxchange.org>

mod/tagger.php

@@ -27,7 +27,7 @@ function tagger_content(&$a) {
 		dbesc($item_id)
 	);
 
-	if(! $item_id || (! count($r))) {
+	if(! $item_id || (! dbm::is_result($r))) {
 		logger('tagger: no item ' . $item_id);
 		return;
 	}
@@ -39,7 +39,7 @@ function tagger_content(&$a) {
 	$r = q("select `nickname`,`blocktags` from user where uid = %d limit 1",
 		intval($owner_uid)
 	);
-	if(count($r)) {
+	if(dbm::is_result($r)) {
 		$owner_nick = $r[0]['nickname'];
 		$blocktags = $r[0]['blocktags'];
 	}
@@ -50,7 +50,7 @@ function tagger_content(&$a) {
 	$r = q("select * from contact where self = 1 and uid = %d limit 1",
 		intval(local_user())
 	);
-	if(count($r))
+	if(dbm::is_result($r))
 			$contact = $r[0];
 	else {
 		logger('tagger: no contact_id');
@@ -178,7 +178,7 @@ EOT;
 	$r = q("select `tag`,`id`,`uid` from item where `origin` = 1 AND `uri` = '%s' LIMIT 1",
 		dbesc($item['uri'])
 	);
-	if(count($r)) {
+	if(dbm::is_result($r)) {
 		$x = q("SELECT `blocktags` FROM `user` WHERE `uid` = %d limit 1",
 			intval($r[0]['uid'])
 		);