Description:
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getenv() appears to cause a memory leak on Windows XP, 5.2.5. Could not reproduce on FreeBSD 4/PHP 5.0.5. It seems to only happen in the Apache module - the CLI exhibits the expected behavior.

Reproduce code:
---------------
echo memory_get_usage() . '<br /><br />';
		for ( $j = 0; $j < 100; $j++ ) {
			@getenv('SCRIPT_NAME');
			echo memory_get_usage() . '<br />';
		}
		


Expected result:
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memory_get_usage() should report the same amount through all iterations

Actual result:
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memory_get_usage() reports the same amount for the first 28 iterations, then begins to climb and continues to climb