use (faster) proper func to check for valid utf8HEADmaster

1 files changed, 1 insertions, 1 deletions

diff --git a/it.class b/it.class
index 2aebd27..6ed5425 100644
--- a/it.class
+++ b/it.class
@@ -601,7 +601,7 @@ static function any2utf8($value, $errprefix = "")
 	}
 	else if (is_string($value))
 	{
-		if (!is_int(grapheme_strlen($value)))
+		if (!mb_check_encoding($value, "UTF-8"))
 			list($value, $error) = array(it::utf8_encode($value), it::utf8_encode("incorrect utf8-encoding. input=$value"));
 		if (preg_match('/\xc3[\x82\x83]\xc2[\x82\x83\xbc\xa9\xa4\xb6\xa8\xa2\xa0\xb4\xaa\xa7\x84\xab\xae\x9c\xaf\x96\xb2\xbb\xb9\x9f]/', $value))
 			list($value, $error) = array(it::any2utf8(preg_replace_callback('/\xc3[\x82\x83]\xc2[\x82\x83\xbc\xa9\xa4\xb6\xa8\xa2\xa0\xb4\xaa\xa7\x84\xab\xae\x9c\xaf\x96\xb2\xbb\xb9\x9f]/', function($m) {return it::utf8_decode($m[0]);}, $value)), $errprefix ? "double utf8-encoding. input=$value" : "");