Warning: Unsupported declare 'strict_types' in C:\xampp\htdocs\monitor\vendor\nikic\php-parser\test\PhpParser\JsonDecoderTest.php on line 1

Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in C:\xampp\htdocs\monitor\vendor\nikic\php-parser\test\PhpParser\JsonDecoderTest.php on line 31