带值会话的JSON文件？

For my Bootstrap page, I have à json file who set his display conditions. I would like hide a colomn if not a admin.

Is it possible to use an if statement inside a JSON file with value session? (In an external Json file)

Like this:

[
  {"if":"$_SESSION['droit']==2","name":"last_connect","title":"Last connect","breakpoints":"xs sm md","visible":true,"filterable":false, "style":{"maxWidth":120,"whiteSpace":"nowrap","text-align":"center"}}
]