Safer htmlspecialchars_utf8 (#4411)

* Safer htmlspecialchars_utf8
#fix https://github.com/FreshRSS/FreshRSS/issues/4410

* Undefined variable

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/Minz/Helper.php b/lib/Minz/Helper.php
index b38292fbe..2c011e1bf 100644
--- a/lib/Minz/Helper.php
+++ b/lib/Minz/Helper.php
@@ -16,7 +16,10 @@ class Minz_Helper {
 	public static function htmlspecialchars_utf8($var) {
 		if (is_array($var)) {
 			return array_map(array('Minz_Helper', 'htmlspecialchars_utf8'), $var);
+		} elseif (is_string($var)) {
+			return htmlspecialchars($var, ENT_COMPAT, 'UTF-8');
+		} else {
+			return $var;
 		}
-		return htmlspecialchars($var, ENT_COMPAT, 'UTF-8');
 	}
 }