wol-soft/php-json-schema-model-generator

(function () use ($value) {
    foreach (array_diff(array_keys($value), {{ additionalProperties }}) as $propertyKey) {
        {% if patternProperties %}
            foreach ({{ patternProperties }} as $pattern) {
                if (preg_match("/$pattern/", $propertyKey)) {
                    continue 2;
                }
            }
        {% endif %}

        $this->_additionalProperties[$propertyKey] = $value[$propertyKey];
    }

    return false;
})()