why when i put false in the program, it outputs error?

Answer 1

Please post your code if you want help.

Answer 2

Constant names are case sensitive if you use false here.

<?php
define("MSG", "Hi SoloLearners!", false);
echo MSG;
?>

Answer 3

<?php
define("MSG", "Hi SoloLearners!",false);
echo msg;
?>

Answer 4

thank you !