putenv()

Overview

putenv() is a PHP function used to set the value of an environment variable. Versions: PHP 4, PHP 5, PHP 7, PHP 8.

Note:
The environment variable will only exist for the duration of the request. The environment will be reset to its previous state after the end of the request.

Parameters

putenv() can have a single parameter:

assignment: the name of the environment variable, and its value.

Return possibilities

setcookie() will return true if the operation has successfully completed, false if it has failed.

Example

php

putenv("VARIABLE_NAME"="VALUE");

Cookies and similar technologies

putenv()

Parameters

Return possibilities

Example

See also