If you’re getting an XML error when you’re using Facebook Connect to post to a users stream using the function:

$facebook->render_prompt_feed_url()

Then ensure the following:

• You don’t have any double quotes in your attachment
• You don’t have any ampersands in your return URL

For some reason the content is being placed in a hidden field on the page on “mobile” devices.  This isn’t escaping the contents of the post, and hence breaks if you have any of the above.

Highly frustrating!  Hope this helps someone.

http://csv2sql.evandavey.com/ical2csv.php

This takes an iCal URL and provides you with a CSV file as a download.  Makes it much easier to get a list of dates from ICS files and use them for other purposes.

Also available is the CSV2SQL converter that I made last year, taking CSV files and coverting them into INSERT/UPDATE statements for use on a database.

How do you do this?  I’d recommend taking the following steps:

1. Get this great OAuth Twitter PHP library from Abraham Williams
2. Sign up for a Twitter application and get an application setup.  You’ll need the “Consumer Key” and “Consumer Secret” values from Twitter. You will also need to set a “callback url” that Twitter will send the user back to.  Make sure you set this correctly.
3. Include the “twitterOAuth.php” library provided by Adbraham Williams in your code

Now, the process through which OAuth works with Twitter (and any other platform) is as follows:

Firstly, you need to get the user to authenticate with twitter and permit your application to perform actions on their behalf.  To do this, you need to send the user to twitter with a special “authorisation token”.

You request an authorisation token from Twitter, using your Consumer Key and Consumer Secret values you obtained when you signed up for a Twitter Application:

$connection = new TwitterOAuth($consumer_key, $consumer_secret);
$request_token = $connection->getRequestToken();

The $request_token returned contains the “request token” information, which you should store somewhere:

$userData['Twitter_Request_Token'] = $token = $request_token['oauth_token'];
$userData['Twitter_Request_Token_Secret'] = $request_token['oauth_token_secret'];
$db->Save_User_Data($userData); // Replace with your own saving method

Now that you have your request token, you can send the user off to Twitter to authenticate:

$authenticateUrl = $connection->getAuthorizeURL($token);
header("Location: $authenticateUrl");
exit;

Twitter will now authenticate the user and confirm they want your application to have access to their account.  Your next interaction will be on the “callback url” you setup when you created your Twitter application.  In this script you will need to use the “twitter request tokens” you saved previously to then request the “Access token” from Twitter:

$to = new TwitterOAuth($consumer_key, $consumer_secret,
$userData['Twitter_Request_Token'], $userData['Twitter_Request_Token_Secret']);
$tok = $to->getAccessToken();

Now that you’ve got the access token, you should save it as you’ll use this in future requests to Twitter:

$userData['Twitter_Access_Token'] 	= $tok['oauth_token'];
$userData['Twitter_Access_Token_Secret'] = $tok['oauth_token_secret'];
$db->Save_User_Data($userData);

Now confirm you have access to the user on Twitter:

$to = new TwitterOAuth($consumer_key, $consumer_secret,
$userData['Twitter_Access_Token'], $userData['Twitter_Access_Token_Secret']);
$result = json_decode($to->OAuthRequest('https://twitter.com/account/verify_credentials.json', array(), 'GET'));
if ($result->id){
// Everything is fine
}

Now you have access to Twitter via OAuth!  You can now run commands like this:

$to = new TwitterOAuth($consumer_key, $consumer_secret, $access_token, $access_token_secret);
$result = json_decode($to->OAuthRequest(
      'https://twitter.com/statuses/update.json',
       array('status' => $tweet), 'POST'));

The above should give you a few pointers on how to actually get up and running using OAuth/PHP on Twitter.  I hope this post helps a few people get it all working.

/Applications/MAMP/Library/share/mysql/my-huge.cnf
/Applications/MAMP/Library/share/mysql/my-innodb-heavy-4G.cnf
/Applications/MAMP/Library/share/mysql/my-large.cnf
/Applications/MAMP/Library/share/mysql/my-medium.cnf
/Applications/MAMP/Library/share/mysql/my-small.cnf

To setup one of these for MAMP, simply issue the following command:

sudo cp /Applications/MAMP/Library/share/mysql/my-choicehere.cnf /Applications/MAMP/Library/my.cnf

You can hear more here:

What does iPhone OS 3.0 Mean for Your Apps (WSP Online)

A nice thing to do when we first show the map, would be to ensure that all the markers are visible on the map.

To do this, we need to set the zoom level and center point of the map dynamically. So how do we do this?  The answer is GLatLngBounds():

// Get your locations from the database
var mapLocations = <? echo json_encode(Locations::Find()) ?>;

// Initialise our map, add some controls and a default center point
var map = new GMap2(document.getElementById("Mall_Map"));
map.setCenter(new GLatLng(15, 20), 2);
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());

// Now the fun part - create a GLatLngBounds object
	var bounds = new GLatLngBounds();

//
for (var i=0; i<mapLocations.length; i++)
{
        var location = mapLocations[i];
        var point = new GLatLng(location.Latitude, location.Longitude);

        // createMarker() is a custom function which returns a marker for a given GLatLng
        var marker = createMarker(point);

        // extend our bounds to include this point
        bounds.extend(point);

        // add our marker
	map.addOverlay(marker);
}

// Now dynamically set the center and zoom level for our map based on our bounds!
map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds));

The key is the use of the line:

map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds));

This uses our bounds (which we’ve dynamically extended to include each of our points) to determine what the center and bounds zoome level should be.

http://download.fedora.redhat.com/pub/fedora/linux/core/5/i386/os/repodata/repomd.xml

This is because the repositories that yum uses aren’t there anymore.  However you can modify the repositories in /etc/yum/repos.d/ and add these to fix the problem:

http://archive.fedoraproject.org/pub/archive/fedora/linux/core/6/i386/os/
http://archive.fedoraproject.org/pub/archive/fedora/linux/core/6/i386/debug/
http://archive.fedoraproject.org/pub/archive/fedora/linux/core/6/source/SRPMS/

http://archive.fedoraproject.org/pub/archive/fedora/linux/core/updates/6/i386/
http://archive.fedoraproject.org/pub/archive/fedora/linux/core/updates/6/i386/debug/
http://archive.fedoraproject.org/pub/archive/fedora/linux/core/updates/6/SRPMS/

http://archive.fedoraproject.org/pub/archive/fedora/linux/extras/6/i386/

An example change would be to the /etc/yum/repos.d/fedora-core.repo file:

[core]
name=Fedora Core $releasever - $basearch
baseurl=http://archive.fedoraproject.org/pub/archive/fedora/linux/core/5/i386/os/

Symptoms are pretty simple to diagnose – you start MAMP, and it’s control panel pops up and shows that everything is running:

But for some reason you can’t access your webserver or database:

What to do?  Restarting the servers generally doesn’t solve the problem.  However, there is a trick I’ve discovered.  Open up the control panel and click the “Preferences…” button.  Once this popups up, choose the “Ports” tab, change nothing – and click OK:

MAMP will automatically restart – and you should be up and running!

svn switch --relocate http://oldserver.com/PROJECT 

http://newserver.com/PROJECT

This will recursively modify all the .svn folders contents so they point to the correct location.