silverstripe-framework/src/Core/EnvironmentLoader.php
2017-10-20 18:43:11 +13:00

48 lines
1.4 KiB
PHP

<?php
namespace SilverStripe\Core;
use M1\Env\Parser;
/**
* Loads environment variables from .env files
* Loosely based on https://github.com/vlucas/phpdotenv/blob/master/src/Loader.php
*/
class EnvironmentLoader
{
/**
* Load environment variables from .env file
*
* @param string $path Path to the file
* @param bool $overload Set to true to allow vars to overload. Recommended to leave false.
* @return array|null List of values parsed as an associative array, or null if not loaded
* If overloading, this list will reflect the final state for all variables
*/
public function loadFile($path, $overload = false)
{
// Not readable
if (!file_exists($path) || !is_readable($path)) {
return null;
}
// Parse and cleanup content
$result = [];
$variables = Parser::parse(file_get_contents($path));
foreach ($variables as $name => $value) {
// Conditionally prevent overloading
if (!$overload) {
$existing = Environment::getEnv($name);
if ($existing !== false) {
$result[$name] = $existing;
continue;
}
}
// Overload or create var
Environment::setEnv($name, $value);
$result[$name] = $value;
}
return $result;
}
}