fix php 8.0 errors in backend

conlite/includes/functions.database.php

@@ -133,6 +133,8 @@ function dbUpgradeTable($db, $table, $field, $type, $null, $key, $default, $extr
         } else {
             $parameter['DEFAULT'] = "DEFAULT '" . Contenido_Security::escapeDB($default, $db) . "'";
         }
+    } else {
+        $parameter['DEFAULT'] = '';
     }
 
     if (!dbTableExists($db, $table)) {
@@ -145,7 +147,7 @@ function dbUpgradeTable($db, $table, $field, $type, $null, $key, $default, $extr
     // Remove auto_increment
     $structure = dbGetColumns($db, $table);
 
-    if ($structure[$field]["Extra"] == "auto_increment") {
+    if (isset($structure[$field]) && !empty($structure[$field]["Extra"]) && $structure[$field]["Extra"] == "auto_increment") {
         if ($structure[$field]['NULL'] == "") {
             $structure[$field]['NULL'] = "NOT NULL";
         }

conlite/includes/functions.general.php

@@ -396,6 +396,7 @@ function getLanguagesByClient($client) {
 function getLanguageNamesByClient($client) {
     global $db;
     global $cfg;
+    $list = [];
 
     $sql = "SELECT
 	                    a.idlang AS idlang,
@@ -1238,7 +1239,7 @@ function buildCategorySelect($sName, $sValue, $sLevel = 0, $sStyle = "") {
     foreach ($categories as $tmpidcat => $props) {
         $spaces = "  ";
 
-        for ($i = 0; $i < $props["level"]; $i ++) {
+        for ($i = 0; $i < $props["level"]; $i++) {
             $spaces .= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
         }
 
@@ -1282,7 +1283,7 @@ function human_readable_size($number) {
     $n = (float) $number; //Appears to be necessary to avoid rounding
     while ($n >= $base) {
         $n /= (float) $base;
-        $usesuf ++;
+        $usesuf++;
     }
 
     $places = 2 - floor(log10($n));
@@ -1315,7 +1316,7 @@ function array_csort() { //coded by Ichier2003
     $msortline = "return(array_multisort(";
     $i = 0;
     foreach ($args as $arg) {
-        $i ++;
+        $i++;
         if (is_string($arg)) {
             foreach ($marray as $row) {
                 $a = strtoupper($row[$arg]);
@@ -1327,7 +1328,9 @@ function array_csort() { //coded by Ichier2003
         $msortline .= "\$sortarr[" . $i . "],";
     }
     $msortline .= "\$marray));";
-    @ eval($msortline);
+    if(is_array($marray) && count($marray) > 0) {
+        @ eval($msortline);
+    }
     return $marray;
 }
 
@@ -1689,7 +1692,7 @@ function createRandomName($nameLength) {
     $Vouel = 'aeiou';
     $Name = "";
 
-    for ($index = 1; $index <= $nameLength; $index ++) {
+    for ($index = 1; $index <= $nameLength; $index++) {
         if ($index % 3 == 0) {
             $randomNumber = rand(1, strlen($Vouel));
             $Name .= substr($Vouel, $randomNumber - 1, 1);

conlite/includes/include.con_str_overview.php

@@ -754,7 +754,7 @@ if (isset($bDebug) && $bDebug === true) {
     var_dump($navigationTree);
     echo '</pre>';
 }
-if (count($navigationTree[0])) {
+if (is_array($navigationTree[0]) && count($navigationTree[0])) {
     $sCategories = showTree(0, $aWholelist);
 }
 

setup/dbupdate.php

@@ -57,6 +57,9 @@ $currentstep = (empty($_GET['step'])) ? 1 : filter_input(INPUT_GET, "step", FILT
 // Count DB Chunks
 $file = fopen('data/tables.txt', 'r');
 $step = 1;
+$count = 1;
+$fullcount = 1;
+
 while (($data = fgetcsv($file, 4000, ';')) !== false) {
     if ($count == 50) {
         $count = 1;
@@ -71,7 +74,7 @@ while (($data = fgetcsv($file, 4000, ';')) !== false) {
         }
         dbUpgradeTable($db, $_SESSION['dbprefix'] . '_' . $data[0], $data[1], $data[2], $data[3], $data[4], $data[5], $data[6], '', $drop);
 
-        if ($db->errno != 0) {
+        if ($db->getErrorNumber() != 0) {
             $_SESSION['install_failedupgradetable'] = true;
         }
     }

setup/lib/functions.sql.php

@@ -107,7 +107,7 @@ function remove_remarks($sql) {
 
     for ($i = 0; $i < $linecount; $i++) {
         if (($i != ($linecount - 1)) || (strlen($lines[$i]) > 0)) {
-            if ($lines[$i][0] != "#") {
+            if (!empty($lines[$i][0]) && $lines[$i][0] != "#") {
                 $output .= $lines[$i] . "\n";
             } else {
                 $output .= "\n";

setup/steps/forms/setupsummary.php

@@ -97,13 +97,13 @@ class cSetupSetupSummary extends cSetupMask {
 
     public function _getSelectedAdditionalPlugins() {
         $aPlugins = array();
-        if ($_SESSION['plugin_newsletter'] == 'true') {
+        if (isset($_SESSION['plugin_newsletter']) && $_SESSION['plugin_newsletter'] == 'true') {
             $aPlugins[] = i18n_setup('Newsletter');
         }
-        if ($_SESSION['plugin_content_allocation'] == 'true') {
+        if (isset($_SESSION['plugin_content_allocation']) && $_SESSION['plugin_content_allocation'] == 'true') {
             $aPlugins[] = i18n_setup('Content Allocation');
         }
-        if ($_SESSION['plugin_mod_rewrite'] == 'true') {
+        if (isset($_SESSION['plugin_mod_rewrite']) && $_SESSION['plugin_mod_rewrite'] == 'true') {
             $aPlugins[] = i18n_setup('Mod Rewrite');
         }
         return $aPlugins;