`DOCUMENT_ROOT` from environment in cli is not propagated to $_SERVER['DOCUMENT_ROOT']

Description

The following code:

DOCUMENT_ROOT=/test php -r 'var_dump($_SERVER["DOCUMENT_ROOT"]);'

Resulted in this output:

string(0) ""

But I expected this output instead:

string(5) "/test"

with a file the out is the same
I think the culprit is https://github.com/php/php-src/blob/42f994cd05da353c93cd65775026859f664289a3/sapi/cli/php_cli.c#L344 as the only mention of DOCUMENT_ROOT for php-cli

PHP Version

PHP 8.4.15 (cli) (built: Nov 20 2025 19:00:52) (NTS)
Copyright (c) The PHP Group
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Zend Engine v4.4.15, Copyright (c) Zend Technologies
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Operating System

No response

从 sapi/cli/php_cli.c 中 issue 所确定的 DOCUMENT_ROOT 处理开始，分别在有文件和无文件的情况下复现命令行示例。跟踪环境值如何到达 $_SERVER；完成的标准是 PHP CLI 在两种情况下都将 /test 暴露为 $_SERVER['DOCUMENT_ROOT']。