fix : Warning: A non-numeric value encountered

htdocs/accountancy/admin/accountmodel.php

@@ -61,7 +61,7 @@ $active = 1;
 $sortfield = GETPOST("sortfield",'alpha');
 $sortorder = GETPOST("sortorder",'alpha');
 $page = GETPOST("page",'int');
-if ($page == -1 || $page == null) { $page = 0 ; }
+if (empty($page) || $page == -1) { $page = 0; }     // If $page is not defined, or '' or -1
 $offset = $listlimit * $page ;
 $pageprev = $page - 1;
 $pagenext = $page + 1;

htdocs/accountancy/admin/categories_list.php

@@ -64,7 +64,7 @@ $active = 1;
 $sortfield = GETPOST("sortfield",'alpha');
 $sortorder = GETPOST("sortorder",'alpha');
 $page = GETPOST("page",'int');
-if ($page == -1 || $page == null) { $page = 0 ; }
+if (empty($page) || $page == -1) { $page = 0; }     // If $page is not defined, or '' or -1
 $offset = $listlimit * $page ;
 $pageprev = $page - 1;
 $pagenext = $page + 1;

htdocs/accountancy/admin/journals_list.php

@@ -58,7 +58,7 @@ $active = 1;
 $sortfield = GETPOST("sortfield",'alpha');
 $sortorder = GETPOST("sortorder",'alpha');
 $page = GETPOST("page",'int');
-if ($page == -1 || $page == null) { $page = 0 ; }
+if (empty($page) || $page == -1) { $page = 0; }     // If $page is not defined, or '' or -1
 $offset = $listlimit * $page ;
 $pageprev = $page - 1;
 $pagenext = $page + 1;