- if (null !== $this->keyAttribute && is_array($v)) {
- if (!isset($v[$this->keyAttribute]) && is_int($k) && !$isAssoc) {
- $msg = sprintf('The attribute "%s" must be set for path "%s".', $this->keyAttribute, $this->getPath());
- $ex = new InvalidConfigurationException($msg);
+ if (null !== $this->keyAttribute && \is_array($v)) {
+ if (!isset($v[$this->keyAttribute]) && \is_int($k) && !$isAssoc) {
+ $ex = new InvalidConfigurationException(sprintf('The attribute "%s" must be set for path "%s".', $this->keyAttribute, $this->getPath()));