src/Helpers/ReflectionHelper.php
protected static function parseDocCommentSummary($reflection)
    {
        $docLines = preg_split('~\R~u', $reflection->getDocComment());
        if (isset($docLines[1])) {
            return trim($docLines[1], "\t *");
        }

        return '';
    }
protected static function parseDocCommentSummary($reflection)
    {
        $docLines = preg_split('~\R~u', $reflection->getDocComment());
        if (isset($docLines[1])) {
            return trim($docLines[1], "\t *");
        }

        return '';
    }
Returns the first line of PHPDoc block.

@param \ReflectionClass|\ReflectionMethod|\ReflectionProperty  $reflection
@return string