如何在运行 CLI 时将系统环境变量导入 PHP &Apache2Handler? [英] How to get system environment variables into PHP while running CLI & Apache2Handler?

问题描述

我的系统是 Ubuntu，我在 /etc/environment 中设置了我的环境变量.

My system is Ubuntu and I have set my environment variables in /etc/environment.

如果我使用 CLI 运行 PHP 脚本 - 可以识别来自 /etc/environment 的环境变量.

If I'm running PHP script using CLI - environment variables from /etc/environment are recognized.

但是，如果我通过 http://domain/test.php(即 apache2handler)执行 PHP 脚本相同的脚本打印出 NULL，这意味着 /etc/environment 中的环境变量未加载.

But, if I go to execute PHP script thru http://domain/test.php (that is apache2handler) exactly the same script prints out NULL, meaning environment variables from /etc/environment are not loaded.

我所做的修复是在 /etc/apache2/envvars 中添加变量并解决了问题.

The fix I did was adding variables in /etc/apache2/envvars and that solved the problem.

但这是两个不同的文件，它们必须保持同步.

But that is two different files, which then have to be kept in sync.

如何让 PHP/Apache 从 /etc/environment(系统)加载和识别环境变量?

How can I make PHP / Apache load and recognize environment variables from /etc/environment (system)?

为了澄清事情，当我说未加载到 PHP"时，这意味着 /etc/environment 中的变量未在 $_SERVER、 中设置$_ENV、getenv() 和 $GLOBALS 中不存在.换句话说，未加载到 PHP 中".

To clarify things, when I say 'not loaded into PHP' it means variables from /etc/environment are not set in $_SERVER, $_ENV, getenv() and do not exists in $GLOBALS. In other words 'are not loaded into PHP'.

推荐答案

我遇到了完全相同的问题.为了解决这个问题，我只是在 /etc/apache2/envvars 中找到了 /etc/environment.

I had exactly the same problem. To solve it, I just sourced /etc/environment inside /etc/apache2/envvars.

/etc/environment的内容:

export MY_PROJECT_PATH=/var/www/my-project
export MY_PROJECT_ENV=production
export MY_PROJECT_MAIL=[e-mail]

/etc/apache2/envvars的内容:

# Load all the system environment variables.
. /etc/environment

现在，我可以在 Apache 虚拟主机配置文件和 PHP 中使用这些变量了.

Now, I'm able to use these variables in the Apache Virtual Host config files and in PHP.

以下是 Apache 虚拟主机的示例:

Here's an example of an Apache virtual host:

<VirtualHost *:80>
  ServerName my-project.com
  ServerAlias www.my-project.com
  ServerAdmin ${MY_PROJECT_MAIL}
  UseCanonicalName On

  DocumentRoot ${MY_PROJECT_PATH}/www

  # Error log.
  ErrorLog ${APACHE_LOG_DIR}/my-project.com_error.log
  LogLevel warn

  # Access log.
  <IfModule log_config_module>
    LogFormat "%h %l %u %t \"%m %>U%q\" %>s %b %D" clean_url_log_format
    CustomLog ${APACHE_LOG_DIR}/my-project.com_access.log clean_url_log_format
  </IfModule>

  # DocumentRoot directory
  <Directory ${MY_PROJECT_PATH}/www>
    # Disable .htaccess rules completely, for better performance.
    AllowOverride None
    Options FollowSymLinks Includes
    Order deny,allow
    Allow from All

    Include ${MY_PROJECT_PATH}/config/apache/inc.mime-types.conf
    Include ${MY_PROJECT_PATH}/config/apache/inc.cache-control.conf

    # Rewrite rules.
    <IfModule mod_rewrite.c>
      RewriteEngine on
      RewriteBase /

      # Include all the common rewrite rules (for http and https).
      Include ${MY_PROJECT_PATH}/config/apache/inc.rewriterules-shared.conf
    </IfModule>
  </Directory>
</VirtualHost>

这是一个如何使用 PHP 访问它们的示例:

And this is an example of how to access them with PHP:

<?php
header('Content-Type: text/plain; charset=utf-8');
print getenv('MY_PROJECT_PATH') . "\n" .
      getenv('MY_PROJECT_ENV') . "\n" .
      getenv('MY_PROJECT_MAIL') . "\n";
?>

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