src/Growl.php
protected function escape(array $options)
    {
        $results = [];
        foreach ($options as $key => $value) {
            if (!in_array($key, $this->safe)) {
                $results[$key] = escapeshellarg($value);
            } else {
                $results[$key] = $value;
            }
        }

        return $results;
    }
protected function escape(array $options)
    {
        $results = [];
        foreach ($options as $key => $value) {
            if (!in_array($key, $this->safe)) {
                $results[$key] = escapeshellarg($value);
            } else {
                $results[$key] = $value;
            }
        }

        return $results;
    }
Escapes the set of option values.

@param array A set of key/value options.
@return array The sanitized set of key/value options.