From d9d4b6e06db729dbc294ff05359cfdd6d6a31b1e Mon Sep 17 00:00:00 2001
From: Philippe GRAND <philippe.grand@atoo-net.com>
Date: Thu, 26 Oct 2017 13:03:39 +0200
Subject: [PATCH 1/2] Fix : Warning: A non-numeric value encountered in on line
 57 58 59

---
 htdocs/fourn/facture/document.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/htdocs/fourn/facture/document.php b/htdocs/fourn/facture/document.php
index 6926770bd91..818c016de04 100644
--- a/htdocs/fourn/facture/document.php
+++ b/htdocs/fourn/facture/document.php
@@ -54,6 +54,7 @@ $page = GETPOST("page",'int');
 if ($page == -1) {
     $page = 0;
 }
+$page = (is_numeric($page) ? $page : 0);
 $offset = $conf->liste_limit * $page;
 $pageprev = $page - 1;
 $pagenext = $page + 1;

From 61909d842def3478e70aff51f8dfa63dfb794eb0 Mon Sep 17 00:00:00 2001
From: Laurent Destailleur <eldy@destailleur.fr>
Date: Fri, 27 Oct 2017 02:18:11 +0200
Subject: [PATCH 2/2] Update document.php

---
 htdocs/fourn/facture/document.php | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/htdocs/fourn/facture/document.php b/htdocs/fourn/facture/document.php
index 818c016de04..180e72e8262 100644
--- a/htdocs/fourn/facture/document.php
+++ b/htdocs/fourn/facture/document.php
@@ -51,10 +51,7 @@ $result = restrictedArea($user, 'fournisseur', $id, 'facture_fourn', 'facture');
 $sortfield = GETPOST("sortfield",'alpha');
 $sortorder = GETPOST("sortorder",'alpha');
 $page = GETPOST("page",'int');
-if ($page == -1) {
-    $page = 0;
-}
-$page = (is_numeric($page) ? $page : 0);
+if (empty($page) || $page == -1) { $page = 0; }     // If $page is not defined, or '' or -1
 $offset = $conf->liste_limit * $page;
 $pageprev = $page - 1;
 $pagenext = $page + 1;