PHP Decode

--TEST--
Bug #75574 putenv does not work properly if parameter contains non-ASCII unicode character, UTF-8
--INI--
internal_encoding=utf-8
--FILE--
<?php
/*
#vim: set fileencoding=utf-8
#vim: set encoding=utf-8
*/

var_dump(putenv('FOO='), getenv("FOO"));
var_dump(putenv('FOO='), getenv("FOO"));
var_dump(putenv('FOO='), getenv("FOO"));
var_dump(putenv('FOO='), getenv("FOO"));

var_dump(putenv('FOO=a'), getenv("FOO"));
var_dump(putenv('FOO=a'), getenv("FOO"));
var_dump(putenv('FOO=aa'), getenv("FOO"));
var_dump(putenv('FOO=aa'), getenv("FOO"));
var_dump(putenv('FOO=a'), getenv("FOO"));
var_dump(putenv('FOO=a'), getenv("FOO"));
var_dump(putenv('FOO=a'), getenv("FOO"));

?>
--EXPECT--
bool(true)
string(3) ""
bool(true)
string(6) ""
bool(true)
string(9) ""
bool(true)
string(12) ""
bool(true)
string(4) "a"
bool(true)
string(7) "a"
bool(true)
string(8) "aa"
bool(true)
string(11) "aa"
bool(true)
string(10) "a"
bool(true)
string(13) "a"
bool(true)
string(16) "a"