Well, assuming you're just wanting to save textual content for later retrieval, PHP is very capable of performing the task. You should begin by creating a blank document named notes.php, then another new .php page with the following contents:
HTML Code:
<form action="" method="post">
<textarea style="width: 99%; height: 95%;" name="notes">
<?php
echo file_get_contents('notes.php');
?>
</textarea><br />
<input type="submit" value="Save" />
</form>
Then, in a PHP snippet above that:
PHP Code:
<?
if ($_POST['notes'])
{
$handle = fopen('notes.php');
fwrite($handle, stripslashes($_POST['notes']));
fclose($handle);
}
?>
And that really should do the trick. If you need any further assistance, I'm more than happy to help.