tag_is_valid: check numeric tags properly

1 files changed, 1 insertions, 1 deletions

diff --git a/include/functions2.php b/include/functions2.php
index 1a0cb6d22..63b11717e 100755
--- a/include/functions2.php
+++ b/include/functions2.php
@@ -1156,7 +1156,7 @@
 
 	function tag_is_valid($tag) {
 		if ($tag == '') return false;
-		if (preg_match("/^[0-9]*$/", $tag)) return false;
+		if (is_numeric($tag)) return false;
 		if (mb_strlen($tag) > 250) return false;
 
 		if (!$tag) return false;