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

Parse error: syntax error, unexpected ':', expecting ';' or '{' in D:\xampp\htdocs\prdk-wb-be\vendor\league\commonmark\src\Extension\FrontMatter\FrontMatterParserInterface.php on line 20