From 31365729dc7a373f224e762e8dbe663529543655 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.spb.ru>
Date: Sat, 22 Nov 2008 07:20:45 +0100
Subject: [PATCH] tag_is_valid: only call iconv() when function exists

---
 functions.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/functions.php b/functions.php
index a800a6a8..4d3e8c7b 100644
--- a/functions.php
+++ b/functions.php
@@ -4503,7 +4503,10 @@
 		if ($tag == '') return false;
 		if (preg_match("/^[0-9]*$/", $tag)) return false;
 
-		$tag = iconv("utf-8", "utf-8", $tag);
+		if (function_exists('iconv')) {
+			$tag = iconv("utf-8", "utf-8", $tag);
+		}
+
 		if (!$tag) return false;
 
 		return true;
-- 
2.39.2