putenv

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

Parameters

assignment

The setting, like "FOO=BAR"

Return Values

Returns true on success or false on failure.

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Example of putenv

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Function putenv:

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