OP#7365 PHP-8.1 - Upgrade - cronlog Viewer (monitors.ascii)https://projects.iml.unibe.ch/work_packages/7365

see https://projects.iml.unibe.ch/projects/sysadmin/work_packages/7365/activity Frehsup PHP code - set variable types vor variables and methods; short array syntax

DRAFT to be deployed after holiday

classes/cronlog-renderer.class.php

@@ -44,6 +44,13 @@ class cronlogrenderer extends cronlog
      */
     protected int $_iMinTime4Timeline = 60;
 
+    /**
+     * Max count of entries in history table to prevent freezing of the screen
+     * when displaying a lot of entries, eg all logs of 100+ servers
+     * @var int
+     */
+    protected int $_iHistoryLimit = 1000;
+
     /**
      * Show date of last data and last access; used in rendering methods to display it on top
      * @param integer $iLast  unix timestamp of last log entry
@@ -55,9 +62,10 @@ class cronlogrenderer extends cronlog
             return '';
         }
         $iAge = round((date('U') - $iLast) / 60);
+        $sAge = ($iAge > 60*24 ? '<span class="message-error">'.$iAge.'</span>' : $iAge);
         return '<div class="accessandage">'
             . sprintf($this->t("request-time"), date("Y-m-d H:i:s")) . '<br>'
-            . sprintf($this->t("last-entry"), $iAge)
+            . sprintf($this->t("last-entry"), $sAge)
             . '</div>'
         ;
     }
@@ -365,12 +373,25 @@ class cronlogrenderer extends cronlog
             $aData = $this->getServerJobHistory();
         }
 
+        // sort by starting time - especially before cutting the list
+        $aTmp=[];
+        foreach($aData as $sKey => $aEntry) {
+            $aTmp[$aEntry['start'].'__'.$aEntry['host'].'__'.$aEntry['job']]=$aEntry;
+        }
+        krsort($aTmp);
+        $aData = array_values($aTmp);
+
         $sTblHead = '';
         $iOK = 0;
         $iErrors = 0;
         $iLast = false;
+        $iCounter = 0;
         // job=dok-kvm-instances:host=kalium:start=1538358001:end=1538358001:exectime=0:ttl=60:rc=0
         foreach ($aData as $aEntry) {
+            $iCounter++;
+            if($iCounter>$this->_iHistoryLimit) {
+                break;
+            }
             if (!$sTblHead) {
                 foreach ([
                     $this->t("col-starting-time"),