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<?php
namespace Illuminate\Support;
use Dotenv\Environment\Adapter\EnvConstAdapter;
use Dotenv\Environment\Adapter\PutenvAdapter;
use Dotenv\Environment\Adapter\ServerConstAdapter;
use Dotenv\Environment\DotenvFactory;
use PhpOption\Option;
class Env
{
/**
* Indicates if the putenv adapter is enabled.
*
* @var bool
*/
protected static $putenv = true;
/**
* The environment factory instance.
*
* @var \Dotenv\Environment\FactoryInterface|null
*/
protected static $factory;
/**
* The environment variables instance.
*
* @var \Dotenv\Environment\VariablesInterface|null
*/
protected static $variables;
/**
* Enable the putenv adapter.
*
* @var bool
*/
public static function enablePutenv()
{
static::$putenv = true;
static::$factory = null;
static::$variables = null;
}
/**
* Disable the putenv adapter.
*
* @var bool
*/
public static function disablePutenv()
{
static::$putenv = false;
static::$factory = null;
static::$variables = null;
}
/**
* Get the environment factory instance.
*
* @return \Dotenv\Environment\FactoryInterface
*/
public static function getFactory()
{
if (static::$factory === null) {
$adapters = array_merge(
[new EnvConstAdapter, new ServerConstAdapter],
static::$putenv ? [new PutenvAdapter] : []
);
static::$factory = new DotenvFactory($adapters);
}
return static::$factory;
}
/**
* Get the environment variables instance.
*
* @return \Dotenv\Environment\VariablesInterface
*/
public static function getVariables()
{
if (static::$variables === null) {
static::$variables = static::getFactory()->createImmutable();
}
return static::$variables;
}
/**
* Gets the value of an environment variable.
*
* @param string $key
* @param mixed $default
* @return mixed
*/
public static function get($key, $default = null)
{
return Option::fromValue(static::getVariables()->get($key))
->map(function ($value) {
switch (strtolower($value)) {
case 'true':
case '(true)':
return true;
case 'false':
case '(false)':
return false;
case 'empty':
case '(empty)':
return '';
case 'null':
case '(null)':
return;
}
if (preg_match('/\A([\'"])(.*)\1\z/', $value, $matches)) {
return $matches[2];
}
return $value;
})
->getOrCall(function () use ($default) {
return value($default);
});
}
}