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# apache_setenv

(PHP 4 >= 4.2.0, PHP 5)

apache_setenv -- Set an Apache subprocess_env variable

## Description

int apache_setenv ( string variable, string value [, bool walk_to_top] )

apache_setenv() sets the value of the Apache environment variable specified by variable.

> 注: When setting an Apache environment variable, the corresponding $_SERVER variable is not changed.

範例 1. Setting an Apache environment variable using apache_setenv()

`<?php apache_setenv("EXAMPLE_VAR", "Example Value"); ?>`

apache_setenv() can be paired up with apache_getenv() across separate pages or for setting variables to pass to Server Side Includes (.shtml) that have been included in PHP scripts.

See also apache_getenv().

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