How to path in script

See more:

Javascript

Hey Guys i have a question on how to path on the script I have code below and .php file is in the same folder but what if i am trying to place a .php file in folder below
my structure is Main/.php file i want it in main/inc/.php file
and it is not working like

data: "inc/.php"

What I have tried:

<script>

ac.attach({
  target: document.getElementById("textid"),
  data: ".php"
});
</script>