kordenv

/**
     * Formats paragraphs around given text for all line breaks
     *  <br /> added for single line return
     *  <p> added for double line return
     *
     * @param string $text Text
     * @return string The text with proper <p> and <br /> tags
     * @link http://book.cakephp.org/3.0/en/views/helpers/text.html#converting-text-into-paragraphs
     */
    public function autoParagraph($text)
    {
        if (trim($text) !== '') {
            $text = preg_replace('|<br[^>]*>\s*<br[^>]*>|i', "\n\n", $text . "\n");
            $text = preg_replace("/\n\n+/", "\n\n", str_replace(["\r\n", "\r"], "\n", $text));
            $texts = preg_split('/\n\s*\n/', $text, -1, PREG_SPLIT_NO_EMPTY);
            $text = '';
            foreach ($texts as $txt) {
                $text .= '<p>' . nl2br(trim($txt, "\n")) . "</p>\n";
            }
            $text = preg_replace('|<p>\s*</p>|', '', $text);
        }

        return $text;
    }