function EnvironmentResolver::retrieveValue

@psalm-suppress InvalidReturnStatement @psalm-suppress InvalidReturnType

Overrides ResolverInterface::retrieveValue

File

vendor/open-telemetry/sdk/Common/Configuration/Resolver/EnvironmentResolver.php, line 31

Class

EnvironmentResolver

@internal

Namespace

OpenTelemetry\SDK\Common\Configuration\Resolver

Code

public function retrieveValue(string $variableName) {
    $value = getenv($variableName);
    if ($value === false) {
        $value = $_SERVER[$variableName] ?? null;
    }
    return $value;
}