Passing PHP JSON to [removed] echo json_encode vs echo json declaration

Question

I\'m trying to create a common constants file to share between php and javascript, using JSON to store the constants. But I\'m wondering why pass the JSON from PHP to javasc

Answer 1

constant.php

 "val", "const2" => "val2");
?>

======================END OF FILE constant.php=======

In php you can access using

$array[""]

In javascript, you can access using

contants.const1, ....