---
layout: doc
title: apply / interactive / receive_environ
---
# receive_environ

### 名称

    receive_environ

### 语法

    void receive_environ( string var, string value);

### 描述

    During telnet negotiations, if remote party sends over environment options defined according to
    https://tools.ietf.org/html/rfc1572, the user object will receive this callback to
    process it.

    The user object will be called once for each variable received.
