From fa9eda18b81fe3cb7f1d85c10c2c221e917a0b45 Mon Sep 17 00:00:00 2001
From: nathangray <nathangray.bsc+github@gmail.com>
Date: Tue, 12 May 2020 09:30:55 -0600
Subject: [PATCH] Setup: Fix backups to keep of 0 gave an error "must be
 integer"

---
 setup/db_backup.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/setup/db_backup.php b/setup/db_backup.php
index 291530e38f..8486f4c883 100644
--- a/setup/db_backup.php
+++ b/setup/db_backup.php
@@ -87,10 +87,10 @@ else
 if ($_POST['save_backup_settings'])
 {
 	$matches = array();
-	preg_match('/^[1-9][0-9]*$/', $_POST['backup_mincount'], $matches);
-	$minCount = $matches[0];
+	preg_match('/^\d*$/', $_POST['backup_mincount'], $matches);
+	$minCount = (int)$matches[0];
 	$filesBackup = $_POST['backup_files'] === 'backup_files';
-	if (empty($minCount))
+	if (empty($minCount) && $matches[0] != '0')
 	{
 		$minCount = 0;
 		$setup_tpl->set_var('error_msg',htmlspecialchars(lang("'%1' must be integer", lang("backup min count"))));