Saturday, December 16, 2006

The new release of phpAspect is coming soon

Since the end of the Google Summer of Code, it was a crazy time at school so I didn't had time to do a release of my work.
I have two weeks of holidays very soon, there will be dedicated to the release of phpAspect.
Basically, I need to clean up some piece of code and finish to write the documentation.
I'm very excited about this new release, I can't wait that you can play with the new joinpoints we designed and the logical engine we introduced.

Google Code Hosting just released two new cool features: A wiki and a download tab.
I intend to get full benefits from these features for phpAspect ;-)

Happy hollidays everybody !

Saturday, November 11, 2006

The Parse Tree generator

I put this form online so you can try the parse tree extension without installing it:
You can upload your own php script and get the xml tree or the tree visualization in png format.

I also put a mini documentation on a wiki page:

If you have any question regarding parse_tree, you can ping the googlegroups associated to

Thursday, November 9, 2006

Picture of GSoCers

Uros Trebec posted on his blog the picture of all the GSoCers present during the London Googleplex visit.

Sunday, October 29, 2006

Visit of the London Googleplex

Last friday I went to London to visiting the Google office with other GSoCers.First of all, I went to London to visit Google and I had no idea how great it would be to met other GSoCers. Everybody were nice, funny and very excited about theirs projects.

We had a nice lunch (with sushis, I love sushis !!!) and we had a round table with Chris Di Bona and Zaheda Bhorat where everyone did an self-introduction. It was a chance to know a little bit more about everybody and it also was a chance to see in what kind of studies we're all involved. Then we did the lightning talk presentations and we had a big chat about the Google Summer of Code: what was great, what went wrong, what is next, what could be improved etc.
A Googler came to talk to us about being an engineer at Google and we did a visit of the Office.

It was very enriching at so many level. I learned more about the Google work environment, what kind of relationship Google has with the Open source world, how awesome GSoCers are and it was also a great opportunity to know more about being an engineers at Google.

You can get the pdf version here.

Tuesday, October 3, 2006

Visualize the parse tree of a PHP source code

 wrote this xslt stylesheet to visualize the parse tree of a PHP source code.
The stylesheet can actually convert any XML tree to a graph in the dot format interpreted by Graphviz.

The code to vizualize nice parse tree with the PECL extension is the following:

//Loading the parse tree into a DOMDocument
$xml = new DOMDocument;
$xml->loadXML(parse_tree_from_file('order.php'), XML_OPTIONS);
//Loading the stylesheet into a DOMDocument
$xsl = new DOMDocument;
$xsl->load('toDot.xsl', XML_OPTIONS);
//Stylesheet processing
$proc = new XSLTProcessor;
//Generating the image with graphviz
file_put_contents('', trim($proc->transformToXML($xml)));
`dot -T png -o order.png`
So if order.php contains the following source code:
class Order{
    private $items = array();
    private $amount = 0;
    public function addItem($reference, $quantity){
        $this->items[] = array($reference, $quantity);
        $this->amount += $quantity*Catalog::getPrice($reference);
    public function getAmount(){
        return $this->amount;
class Catalog{
    private static $priceList = array('Largo Winch' => 9.31, 'Astérix' => 8.46, 'XIII' => 8.70);
    public static function getPrice($reference){
        return self::$priceList[$reference];
$myOrder = new Order;
$myOrder->addItem('Largo Winch',2);
You'll get the following tree:
To test this example at home, you need the Parse Tree pecl extension, an xslt proc and graphviz:
order.php is the original php file.
order.xml is the xml generated with the parse_tree_from_file function. is the parse tree in dot format.
order.png is the png generated by graphviz.
toDot.xsl isthe stylesheet generating dot from xml.

Thursday, September 28, 2006

A Logo for phpAspect.

Fabien Nicollet created a logo for phpAspect:

Fabien is also a student at Telecom Lille and he does freelance work in design and graphics.
So if you need any work done in this field, don't hesitate to hire his talents ;-)

Thank you, Fabien!

Thursday, August 31, 2006

phpAspect presented at the EPFL

Last week I was invited by Christelle Vangenot to talk about phpAspect with Philippe Rochat and some of the new features I developed during the Google Summer of code.

The slides are availables at this address:

I'll make a futher post on this blog to talk about the end of the Google soc and the new version of phpAspect which should be released soon.