setter functions changed as fluent.

[shibby]

i've changed all setters functions as fluent.
because of they are not fluent, it was really hard setting parameters.

$piwik = new PiwikTracker($id,$url);
$piwik->setSomething(1);
$piwik->setSomething(2);
$piwik->setSomething(3);

now we can use all setter functions like:

$piwik = new PiwikTracker($id,$url);
$piwik->setSomething(1)
         ->setSomething(2)
         ->setSomething(3);

i think thats more good way for setting sth.

Also, i've made change on setForceVisitDateTime function.
Modern php is really pretty, let use basic objects :) Now this functions accepts DateTimeInterface, so we can pass DateTime object

[tsteur]

As DateTimeInterface was introduced in PHP 5.5 I presume this would fail on PHP 5.3 etc so we can't really merge this change. You could maybe check if the interface exists then it could be ok. Any other thoughts on this?

[shibby]

You are right, DateTimeInterface comes with 5.5.0. i didn't think backward compability. We can use DateTime instead of interface. What do you think? Maybe we can remove whole DateTime object passing if you think its not necessary.

[tsteur]

Let's maybe remove it for now and when working on a new version of PHP Tracker we could use DateTimeInterface by default.

[tsteur]

Fluent is okay I would say. When we refactor it and have a pure data object for config etc we might make the setter methods immutable but in this case it should be fine when it's mutable.

Any other thoughts on this?

[shibby]

I've removed commits about DateTime objects.

[tsteur]

Awesome 👍 Thanks for this