From e230a3a264ce7e81b0ea61111ebc72161f406a82 Mon Sep 17 00:00:00 2001
From: ATM john <john.botella@atm-consulting.fr>
Date: Sat, 18 Apr 2020 16:24:12 +0200
Subject: [PATCH] add num row test

---
 htdocs/core/db/DoliDB.class.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/htdocs/core/db/DoliDB.class.php b/htdocs/core/db/DoliDB.class.php
index e3e0491b298..3bb5e025c34 100644
--- a/htdocs/core/db/DoliDB.class.php
+++ b/htdocs/core/db/DoliDB.class.php
@@ -313,8 +313,10 @@ abstract class DoliDB implements Database
 		$res = $this->query($sql);
 		if ($res)
 		{
-			$Tresult = $this->fetch_row($res);
-			return $Tresult[0];
+			if($this->num_rows($res) > 0) {
+				$Tresult = $this->fetch_row($res);
+				return reset($Tresult);
+			}
 		}
 
 		return false;