PHP 4, PHP 5, PHP 7, PHP 8
putenv - Sets the value of an environment variable
Code Examples

putenv( string$assignment ): bool

Adds 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.



The setting, like "FOO=BAR"

Return Values

Returns true on success or false on failure.

Related Functions

Example of putenv

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