The php function date_add ( DateTime $object , DateInterval $interval ) is an experimental function and shouldn’t really be used in a production site.  The way to get around this is to use strtotime ( string $time [, int $now ] ).

If you’re trying to add a week to today’s date you can simply do the following:
$new_date = strtotime("+1 week");

but if need to add a week to a time stamp of your own you can do:
$my_date = strtotime('05-Dec-2008');
$new_date = strtotime("+1 week", $my_date);

Note: The second parameter needs to be a valid date, when I’m getting data from a database I will usually get the date in to a dd-mmm-yyyy format as this explicitly defines the date. If it were written ‘05-12-2008′ it potentially could be interpreted as ‘12-May-2008′ which could then cause other issues to your data further down the line.

You could condense the code to be one line:
$new_date = strtotime("+1 week", strtotime('05-Dec-2008'));

For outputting the $new_date I’d use php’s date ( string $format [, int $timestamp ] ) function:
$new_date = strtotime("+1 week", strtotime('05-Dec-2008'));
echo date('d M Y', $new_date)

Have a look at php’s strtodate function and php’s date function for information on how to use.

A good introduction to it can be found on Harry Maugans in tutorial AJAX Made Easy, in addition to that the SAMS Teach Yourself in 10 Minutes have got a great little book on Ajax which explains it all really well from beginner to intermediate.

Back to the point in hand, I wanted an animated gif to display while I was collecting data from the server. That is precisely what I got when I came upon the Ajax Loading gif Generator. You can customise the gifs produced from the type of animation to the fore and background colours - A great little tool!

Here’s the contents of the .htaccess for Heart Internet to remove index.php:

RewriteEngine On
RewriteCond $1 !^(index\.php|css|img|js|robots\.txt) [NC]
RewriteRule ^(.+)$ index.php?/$1 [L]

SetEnv DEFAULT_PHP_VERSION 5

The SetEnv DEFAULT_PHP_VERSION 5 tells Heart to use PHP 5.

If you have any directories or specific files (like robots.txt) you need to access for css, JavaScript etc, they will need to be put them in the RewriteCond separated by a pipe (|).

In addition, I prefer working with short open tags for writing PHP. You need a file called php5.ini containing:

short_open_tag = On


For my XAMPP development I use the following code in my .htaccess:

RewriteEngine on
RewriteCond $1 !^(index\.php|css|img|js) [NC]
RewriteRule ^(.*)$ /index.php/$1 [L]


For other servers I’ve needed the following:

Options +FollowSymLinks
RewriteEngine on
RewriteCond $1 !^(index\.php|css|img|js|robots\.txt) [NC]
RewriteRule ^(.*)$ index.php/$1 [L]


The subtle differences (that make a huge difference between it working and not working) that may have not been noticed are all located around /index.php?/$1.

I hope this of some use.

It’s extremly easy to integrate in to your site and is widely used in various applications such as: Wordpress, PHP-Nuke, Joomla and Expression Engine to name a few. A full list can be found here.

Just download it from the TinyMCE download page. Copy the jscripts folder to the root of your htdocs directory.

Then put the following code in between your page tags:

Simple Editor:
<script src="../jscripts/tiny_mce/tiny_mce.js" type="text/javascript"></script> <script type="text/javascript"><!--
tinyMCE.init({
mode : "textareas",
theme : "simple"
});
// --></script>


Now for any <textarea> it will be replaced with the TinyMCE editor functions, the code:


<textarea id="elm1" name="elm1" rows="15" cols="80" style="width: 80%">
<p>
<img src="media/logo.jpg" alt=" " hspace="5" vspace="5" width="250" height="48" align="right" /> TinyMCE is a platform independent web based Javascript HTML <strong>WYSIWYG</strong> editor control released as Open Source under LGPL by Moxiecode Systems AB. It has the ability to convert HTML TEXTAREA fields or other HTML elements to editor instances. TinyMCE is very easy to integrate into other Content Management Systems.</p>
<p>We recommend <a href="http://www.getfirefox.com" target="_blank">Firefox</a> and <a href="http://www.google.com" target="_blank">Google</a>
</p>
</textarea>


Would be displayed like:

The fully featured is extremely comprehensive and looks like:

In my application I replaced the “../” for the JavaScript location to a global variable that returns the base path for my site rather than it being a relative path.

I also customised my copy to to only show the buttons I required and I had the button bar at the top, the great thing about this plugin is that you can get it to automatically produce BBCode which is useful if you’ve got a user facing platform.

To find out about how to customise TinyMCE check this out.