From cb2420c657c2856403afada65712063542b145c0 Mon Sep 17 00:00:00 2001
From: Robert Kaiser <kairo@kairo.at>
Date: Sun, 21 Feb 2021 16:23:20 +0100
Subject: [PATCH] fix string array access

---
 classes/document.php-class |  3 +--
 classes/rrdstat.php-class  | 10 +++++-----
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/classes/document.php-class b/classes/document.php-class
index a0800f2..198296f 100755
--- a/classes/document.php-class
+++ b/classes/document.php-class
@@ -173,8 +173,7 @@ class ExtendedDocument extends DOMDocument {
   //   returns an ExtendedElement that is an HTML <img> with the given src and alt attributes (set to '' by default)
   //
   // public function createElementForm($action, $method, $name)
-  //   returns an ExtendedElement that is an HTML <div> that is a child of an HTML <form>
-  //   with the given action, method, and name
+  //   returns an ExtendedElement that is an HTML <form> with the given action, method, and name
   //
   // public function createElementInputHidden($name, $value)
   //   returns an ExtendedElement that is an HTML <input> of type 'hidden' with the given name and value
diff --git a/classes/rrdstat.php-class b/classes/rrdstat.php-class
index 0a71f13..a6b8e9c 100644
--- a/classes/rrdstat.php-class
+++ b/classes/rrdstat.php-class
@@ -206,11 +206,11 @@ class rrdstat {
       $this->status = 'graphonly';
     }
     elseif (isset($iinfo['file'])) {
-      $this->rrd_file = (($iinfo['file']{0} != '/')?$this->basedir:'').$iinfo['file'];
+      $this->rrd_file = (($iinfo['file'][0] != '/')?$this->basedir:'').$iinfo['file'];
       $this->basename = basename((substr($this->rrd_file, -4) == '.rrd')?substr($this->rrd_file, 0, -4):$this->rrd_file);
     }
     elseif (!is_null($conf_id) && file_exists($conf_id.'.rrd')) {
-      $this->rrd_file = (($iinfo['file']{0} != '/')?$this->basedir:'').$conf_id.'.rrd';
+      $this->rrd_file = (($iinfo['file'][0] != '/')?$this->basedir:'').$conf_id.'.rrd';
       $this->basename = $conf_id;
     }
     else {
@@ -509,8 +509,8 @@ class rrdstat {
     $fname = str_replace('%t', $timeframe, $fname);
     $fname = str_replace('%f', $fmt_ext, $fname);
     if (substr($fname, -strlen($fmt_ext)) != $fmt_ext) { $fname .= $fmt_ext; }
-    if (isset($gconf['path']) && ($fname{0} != '/')) { $fname = $gconf['path'].'/'.$fname; }
-    if ($fname{0} != '/') { $fname = $this->basedir.$fname; }
+    if (isset($gconf['path']) && ($fname[0] != '/')) { $fname = $gconf['path'].'/'.$fname; }
+    if ($fname[0] != '/') { $fname = $this->basedir.$fname; }
     $fname = str_replace('//', '/', $fname);
 
     $graphrows = array(); $specialrows = array(); $gC = 0;
@@ -1178,7 +1178,7 @@ class rrdstat {
     $snames = array(); $s_exclude = array(); $sfiles = array();
     if (isset($pconf['index_ids'])) {
       foreach (explode(',', $pconf['index_ids']) as $iid) {
-        if ($iid{0} == '-') { $s_exclude[] = substr($iid, 1); }
+        if ($iid[0] == '-') { $s_exclude[] = substr($iid, 1); }
         else { $snames[] = $iid; }
       }
     }
-- 
2.43.0