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<?phpfunction bb_auto_li($ciag) {  if (preg_match('#^\*(.+?)$#m', $ciag)) {    $ciag .= "<ul>";    $ciag .= preg_replace("#^\*(.+?)$#m", "<li>$1</li>", $ciag);    $ciag .= "</ul>";    return $ciag;  }}if (isset($_POST['text'])) {$a = $_POST['text'];$a = nl2br($a);echo bb_auto_li($a);}?><form action="" method="post"><textarea name="text"></textarea><input type="submit" value="send" /></form>