Warning: Unsupported declare 'strict_types' in D:\xampp\htdocs\prdk-wb-be\vendor\league\commonmark\src\Output\RenderedContent.php on line 12

Parse error: syntax error, unexpected 'Document' (T_STRING), expecting variable (T_VARIABLE) in D:\xampp\htdocs\prdk-wb-be\vendor\league\commonmark\src\Output\RenderedContent.php on line 21