PHP-Code:
//BREAK
$matched = preg_match('/^(.*)$/m', $my_string, $matched_line);
if ($matched) $first_line = $matched_line[1];
//PARAGRAPH
$matched = preg_match('/(.*)\r?\n\\s*\n/U', $my_string, $matched_paragraph);
if ($matched) $first_paragraph = $matched_paragraph[1];
ungetestet!
~