Fix: sample markAsFinal => method must be called on presentation properties

Author: mindline-analytics

samples/Sample_13_MarkAsFinal.php

@@ -9,7 +9,7 @@
 $objPHPPresentation = new PhpPresentation();
 
 // Mark the document as final
-$objPHPPresentation->markAsFinal(true);
+$objPHPPresentation->getPresentationProperties()->markAsFinal(true);
 
 // Create slide
 echo date('H:i:s') . ' Create slide' . EOL;