<form method="POST" action="" />
Описание: <br />
<textarea name="desc" /><br />
<input type="submit" name="submit" value="Добави" /><br />
</form>
<?php
if($_POST['submit'])
{
$desc = $_POST['desc'];
mysql_query('INSERT INTO tablica (desc) VALUES ('.$desc.')');
}
?>
А как по точно...