php - 如何在PHP中设置和使用PHP_INI_SCAN_DIR环境变量？

Question

我已在运行 Windows 10 的计算机上安装了 PHP 7.2.3。我已使用 XAMPP 包的最新副本安装了 PHP 和 Apache httpd 4.29。

我在 PHP Manual 中看到以下文本

It is possible to configure PHP to scan for .ini files in a directory after reading php.ini. This can be done at compile time by setting the --with-config-file-scan-dir option. In PHP 5.2.0 and later, the scan directory can then be overridden at run time by setting the PHP_INI_SCAN_DIR environment variable.

It is possible to scan multiple directories by separating them with the platform-specific path separator (; on Windows, NetWare and RISC OS; : on all other platforms; the value PHP is using is available as the PATH_SEPARATOR constant). If a blank directory is given in PHP_INI_SCAN_DIR, PHP will also scan the directory given at compile time via --with-config-file-scan-dir .

我尝试了下面的代码，但无法设置环境变量 PHP_INI_SCAN_DIR

        <?php
            $_ENV['PHP_INI_SCAN_DIR'] = "Jumbo";
            print_r(getenv());
        ?>

请有人让我明白 PHP_INI_SCAN_DIR 到底是什么？以及如何使用/设置它？

Answer 1

• 您可以在 .htaccess 中使用 Apache SetEnv文件或 <vhost>部分。
  https://serverfault.com/questions/224685/php-ini-disable-scan-this-dir-for-additional-ini-files

  SetEnv PHP_INI_SCAN_DIR C:/web/app/conf.d/
  

• 在 Windows 上，您还可以转到控制面板并设置 global environment variable ，或者按服务配置它。

• 或者安装 MSVC 和 recompile PHP设置自定义./configure选项(例如 --with-config-file-scan-dir )。

  You probably do not want to do that.