diff --git a/src/Symfony/Component/HttpClient/HttpClientTrait.php b/src/Symfony/Component/HttpClient/HttpClientTrait.php index de1689490e623..57d48aade8db2 100644 --- a/src/Symfony/Component/HttpClient/HttpClientTrait.php +++ b/src/Symfony/Component/HttpClient/HttpClientTrait.php @@ -189,7 +189,7 @@ private static function mergeDefaultOptions(array $options, array $defaultOption $options += $defaultOptions; - foreach (self::$emptyDefaults ?? [] as $k => $v) { + foreach (isset(self::$emptyDefaults) ? self::$emptyDefaults : [] as $k => $v) { if (!isset($options[$k])) { $options[$k] = $v; }