(PHP 4 >= 4.2.0, PHP 5)
apache_setenv — Set an Apache subprocess_env variable
apache_setenv() sets the value of the Apache environment variable specified by variable.
Note:
When setting an Apache environment variable, the corresponding $_SERVER variable is not changed.
The environment variable that's being set.
The new variable value.
Whether to set the top-level variable available to all Apache layers.
成功时返回 TRUE， 或者在失败时返回 FALSE.
Example #1 Setting an Apache environment variable using apache_setenv()
<?php
apache_setenv("EXAMPLE_VAR", "Example Value");
?>
Note:
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.