putenv
(PHP 4, PHP 5, PHP 7, PHP 8)
putenv — Sets the value of an environment variable
Description
putenv(string $assignment): boolAdds assignment to the server environment. The environment variable will only exist for the duration of the current request. At the end of the request the environment is restored to its original state.
Parameters
assignment-
The setting, like
"FOO=BAR"
Return Values
Returns true on success or false on failure.
Examples
Example #1 Setting an environment variable
<?php
putenv("UNIQID=$uniqid");
?>See Also
- getenv() - Gets the value of a single or all environment variables
- apache_setenv() - Set an Apache subprocess_env variable
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.putenv.php