PHPUnit_Util_Test::getDataFromDataProviderAnnotation PHP Method

    private static function getDataFromDataProviderAnnotation($docComment, $className, $methodName)
    {
        if (preg_match_all(self::REGEX_DATA_PROVIDER, $docComment, $matches)) {
            $result = [];
            foreach ($matches[1] as $match) {
                $dataProviderMethodNameNamespace = explode('\\', $match);
                $leaf = explode('::', array_pop($dataProviderMethodNameNamespace));
                $dataProviderMethodName = array_pop($leaf);
                if (!empty($dataProviderMethodNameNamespace)) {
                    $dataProviderMethodNameNamespace = implode('\\', $dataProviderMethodNameNamespace) . '\\';
                } else {
                    $dataProviderMethodNameNamespace = '';
                }
                if (!empty($leaf)) {
                    $dataProviderClassName = $dataProviderMethodNameNamespace . array_pop($leaf);
                } else {
                    $dataProviderClassName = $className;
                }
                $dataProviderClass = new ReflectionClass($dataProviderClassName);
                $dataProviderMethod = $dataProviderClass->getMethod($dataProviderMethodName);
                if ($dataProviderMethod->isStatic()) {
                    $object = null;
                } else {
                    $object = $dataProviderClass->newInstance();
                }
                if ($dataProviderMethod->getNumberOfParameters() == 0) {
                    $data = $dataProviderMethod->invoke($object);
                } else {
                    $data = $dataProviderMethod->invoke($object, $methodName);
                }
                if ($data instanceof Iterator) {
                    $data = iterator_to_array($data);
                }
                if (is_array($data)) {
                    $result = array_merge($result, $data);
                }
            }
            return $result;
        }
    }