From 511fda79ae28806840a7a175af3a6de66d940594 Mon Sep 17 00:00:00 2001
From: hystepik <lucas.marcouiller@gmail.com>
Date: Wed, 7 Dec 2022 11:48:22 +0100
Subject: [PATCH] fix card-rec

---
 htdocs/fichinter/card-rec.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/htdocs/fichinter/card-rec.php b/htdocs/fichinter/card-rec.php
index 61da1175296..45779950ea6 100644
--- a/htdocs/fichinter/card-rec.php
+++ b/htdocs/fichinter/card-rec.php
@@ -803,7 +803,7 @@ if ($action == 'create') {
 		if (!empty($search_frequency) && $search_frequency == '1') {
 			$sql .= ' AND f.frequency > 0';
 		}
-		if (!empty($search_frequency) && $search_frequency == '0') {
+		if (isset($search_frequency) && (string) $search_frequency == '0') {
 			$sql .= ' AND (f.frequency IS NULL or f.frequency = 0)';
 		}