PHP getenv始终返回false [英] PHP getenv always returns false
问题描述
getenv()
始终返回false.我正在使用Symfony dotenv库,并从项目根目录中的.env文件加载变量.
The getenv()
always returns false. I am using Symfony dotenv library and loading my variables from a .env file in the root of my project.
use Symfony\Component\Dotenv\Dotenv;
use Symfony\Component\Dotenv\Exception\PathException;
if (!getenv('APP_ENV')) {
try {
(new Dotenv())->load(__DIR__ . '/../.env');
} catch (PathException $ex) {
echo $ex->getMessage();
exit(1);
}
}
var_dump(getenv('APP_ENV')); // bool(false)
但是当我转储超级全局变量时,我可以看到我的变量
But when I dump the super global I can see my variables
var_dump($_ENV); // array:1["APP_ENV" => "dev"]
那我想念什么?
推荐答案
我没有使用symfony,但是遇到了一些问题我正在使用vlucas库,这是导致问题的我的第一个代码
I m not using symfony but i've encountered the some problem i am using the vlucas library this is my first code that caused the problem
define('BASE_PATH',realpath(__DIR__.'/../../'));
require_once __DIR__.'/../../vendor/autoload.php';
$dotEnv = Dotenv\Dotenv::createImmutable(BASE_PATH);
$dotEnv->load();
$appName=$_ENV['APP_NAME'];
$appName2=getenv('APP_NAME'];
var_dump($appName) // return "This is my website";
var_dump($appName2) // return false;
一开始我没有弄清楚问题,但似乎是因为putenv()和getenv()不是线程安全的
i didn't knwo the problem at first but it seems that it was because putenv() and getenv() are not thread safe
所以我将其更改为此代码
so i changed it to this code
define('BASE_PATH',realpath(__DIR__.'/../../'));
require_once __DIR__.'/../../vendor/autoload.php';
$dotEnv = Dotenv\Dotenv::createUnsafeImmutable(BASE_PATH);// <======== :) look here
$dotEnv->load();
$appName=$_ENV['APP_NAME'];
$appName2=getenv('APP_NAME'];
var_dump($appName) // return "This is my website";
var_dump($appName2) // return "This is my website";
我希望这可以解决您的问题
i hope this resolves your issue
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