How can I interpolate an existing php string literal inside a json file?

Question

I have a php script , it accessing a json file by using file_get_contents(), inside a json file, we have declared a php variable. Please let me know is there any w

Answer 1

I might get downvoted for this, but could eval be used in this situation?

Output:

{
    "result":"Hello world",
    "count":3
}