SQLite: PDOException: open_basedir prohibits opening :memory:?cache=shared

Description

The following code:

#!/usr/bin/env php
<?php

print "open_basedir: ";
var_dump(ini_get("open_basedir"));
print "\n";

$db = new \PDO("sqlite::memory:?cache=shared", null, null, [
    \PDO::ATTR_PERSISTENT => true,
    \PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
    \PDO::ATTR_EMULATE_PREPARES => false,
    \PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
]);

Resulted in this output:

$ ./sqlite-nomemory.php
open_basedir: string(0) ""

PHP Fatal error:  Uncaught PDOException: open_basedir prohibits opening :memory:?cache=shared in …\sqlite-nomemory.php:8
Stack trace:
#0 …\sqlite-nomemory.php(8): PDO->__construct('sqlite::memo
ry:...', NULL, Object(SensitiveParameterValue), Array)
#1 {main}
  thrown in …\sqlite-nomemory.php on line 8

But I expected this output instead:

I expected no error. Frankly, the code should just work.

PHP Version

PHP 8.4.13 (cli) (built: Sep 23 2025 15:17:09) (ZTS Visual C++ 2022 x64)
Copyright (c) The PHP Group
Zend Engine v4.4.13, Copyright (c) Zend Technologies
    with Zend OPcache v8.4.13, Copyright (c), by Zend Technologies

Operating System

Windows 10

首先在 Windows 10 上使用 PHP 8.4.13 运行 sqlite-nomemory.php 复现，并检查通过 PDO 构造函数到达的 PDO SQLite 处理逻辑。显示的 sqlite::memory:?cache=shared 连接在没有 open_basedir 异常的情况下成功建立，即视为完成；一个已打开的 pull request 已经链接。