Stop converting string to integer on post request php

I am having trouble getting data in post request php.

In the frontend i am sending a post request value as 080
but when i save the data or show the data in backend it only shows 80.

I tried using following methods but it all returns same:

$value = (string)$_POST["value"];

$value = strval($_POST["value"]);

$value = "{$_POST["value"]}";

$value = $_POST["value"] . "";

But when i tried adding some value in the string following way it works

$value = "Hello: {$_POST["value"]}" <– in this scenario it works perfectly fine.
Returning as Hello: 081

When i use var_dump($_POST["value"]) it returns as: string(3) "080"

How can i solve this issue?