Feat(Exporter) - exporter classes to php 8.2

Adapt Exporters classses to php8.2

include/exporter/class_pdfExporter.inc

@@ -67,7 +67,7 @@ class pdfExporter
     $this->result = new PDF('L', 'mm', 'A4');
     $this->result->AliasNbPages();
     $this->result->SetFont('Helvetica', '', 10);
-    $this->result->setHeadline(utf8_decode($headline));
+    $this->result->setHeadline(mb_convert_encoding((string) $headline, 'ISO-8859-1'));
     $this->result->AddPage();
 
     // Analyze for width
@@ -92,7 +92,7 @@ class pdfExporter
 
         foreach ($columns as $order => $index) {
           if (isset($header[$index])) {
-            $this->result->Cell($width[$order], 7, utf8_decode($header[$index]), 1, 0, 'C', 1);
+            $this->result->Cell($width[$order], 7, mb_convert_encoding($header[$index], 'ISO-8859-1'), 1, 0, 'C', 1);
           } else {
             $this->result->Cell($width[$order], 7, '', 1, 0, 'C', 1);
           }
@@ -107,7 +107,7 @@ class pdfExporter
 
       foreach ($columns as $order => $index) {
         if (isset($row["_sort$index"])) {
-          $this->result->Cell($width[$order], 6, utf8_decode($row["_sort$index"]), 'LR', 0, 'L', $fill);
+          $this->result->Cell($width[$order], 6, mb_convert_encoding($row["_sort$index"], 'ISO-8859-1'), 'LR', 0, 'L', $fill);
         } else {
           $this->result->Cell($width[$order], 6, '', 'LR', 0, 'L', $fill);
         }
@@ -242,7 +242,7 @@ class pdfExporter
     $result->SetFont('Helvetica', '', 10);
     $headline = $listing->parent->headline;
     $headline .= ', '._('created by').' '.$ui->cn.' - '.strftime('%A, %d. %B %Y, %H:%M:%S');
-    $result->setHeadline(utf8_decode($headline));
+    $result->setHeadline(mb_convert_encoding($headline, 'ISO-8859-1'));
     $result->AddPage();
 
     // Analyze for width
@@ -259,7 +259,7 @@ class pdfExporter
 
     foreach ($columns as $index => $column) {
       if ($column->isExportable()) {
-        $result->Cell($width[$index], 7, utf8_decode($column->getLabel()), 1, 0, 'C', 1);
+        $result->Cell($width[$index], 7, mb_convert_encoding((string) $column->getLabel(), 'ISO-8859-1'), 1, 0, 'C', 1);
       }
     }
     $result->Ln();