thislab.com - Web development and design by Fred Wu.

Yeah I am a lame PHP guy who hasn’t gotten too deeply into Ruby yet. ;)

In PHP I often use variable methods, for example:

$foo = new Foo();

$funcname = 'dynamic_method';
$foo->$funcname();
// Same as calling $foo->dynamic_method();

$varname = 'dynamic_accessor';
$foo->$varname = 'some value';
// Same as calling $foo->dynamic_accessor = 'some value';

Now, because Ruby does not prefix $ in front of variables, it is impossible to use variable methods the way we do in PHP.

I am sure for Ruby gurus it’s pretty obvious but for me, I just spent more than 30 minutes searching for an alternative other than evil eval, and I finally found one.

We use the PHP call_user_func and call_user_func_array equivalent in Ruby: send or __send__.

Luckily accessors in Ruby are methods, so we are able to use the send method for both methods and accessors.

For example we can set a variable accessor like this:

foo = Foo.new

funcname = 'dynamic_method'
foo.send "#{funcname}"
# same as calling foo.dynamic_method

varname = 'dynamic_accessor'
foo.send "#{varname}=", 'some value'
# same as calling foo.dynamic_accessor = 'some value'

I wish in future versions of Ruby, we can somehow assign accessor values the way we do in PHP. :)

Disclaimer: This is a very simple, ‘Hello World’ benchmark which has no impact to any real world applications. A more thorough benchmark test (by building two real world applications) is planned. :)

Disclaimer 2:I apologise for posting such a useless benchmark (I certainly didn’t expect it to hit the DZone front page), but I think most of you missed the point. I merely posted this as a result of surprise (to me anyway). At a later stage I will conduct a much more meaningful comparison between some of the frameworks. Until then, please ignore this post. :)

Last few days I have been playing with Ruby and Rails, again.

Today, when someone was asking on a forum about the efficiency of web frameworks, I thought I’d give the few frameworks I work with some more benchmark testing.

So I went ahead and benchmarked CodeIgniter, Kohana and Rails, using a simple ‘Hello World!’ page. Now before I post any benchmark results, you should know that I have previously done a benchmark test on CodeIgniter, Kohana and CakePHP. CodeIgniter and Kohana shared similar results.

(more…)