Comments on: Nice trick with FOR loop

By: jz

jz — Tue, 26 May 2009 23:21:12 +0000

I use described practice in C++ and for huge arrays in PHP. And yes, this is only one trick with “for” loop, no more.

P.S. Забавно, как такая простая и человеческая заметка о маленькой хитрости, не претендующая на отчёт о тестировании и описание какой-то парадигмы программирования, заполучила столько пространных комментариев, доходящих разговоров о MVC

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Translation by Konstantin:
P. S. It’s funny to see, how this simple and useful note about the little trick, that doesn’t claim to be some testing report or description of some development paradigm, got so many large comments, that lead to MVC discussion

By: Konstantin Mirin

Konstantin Mirin — Tue, 26 May 2009 06:04:32 +0000

Universal – yes. But is it really a good idea to use foreach when sorting? I just showed how to get rid of unnecessary extra line using the comma operator.

By: jz

jz — Tue, 26 May 2009 01:32:24 +0000

IMHO, “foreach” is universal way to iterate over arrays. For “for”, if you change some code from “array($a, $b)” to “array(‘a’=>$a, ‘b’=>$b)” you must rewrite other code (MVC example: rewrite code in controller => rewrite code in view). However, this is rare case.

By: Konstantin Mirin

Konstantin Mirin — Tue, 03 Mar 2009 08:05:04 +0000

I can’t understand how this trick refers to the application design and MVC pattern. Sure, I use both for and foreach loops – whichever is better for some specific case. And it is not related to controller or model in any way

By: creocoder

creocoder — Mon, 02 Mar 2009 00:16:33 +0000

Konstantin, I don’t understand you. Your comments are in contradiction with your ideology. On the one hand, “I don’t like to work with Drupal or jQuery. I enjoy ExtJS, for example. And I wanted the same nicely designed PHP framework.” – you write this in your post about Yii. When you perform some useful action in the body of the “for” loop, you get bad code design. And Performance is not a key here. It’s better to write:
foreach (array(1,2,3,4,5) as $a) { echo $a; }

Something like http://kpumuk.info/php/crazy-php-world/

By: Konstantin Mirin

Konstantin Mirin — Sun, 01 Mar 2009 05:14:45 +0000

Sure, it’s OK, but see this: http://www.php.lt/benchmark/phpbench.php
Anyway, it’s not recommendation to use for instead of foreach, just a little trick, that saves a line of code

By: creocoder

creocoder — Sat, 28 Feb 2009 23:39:38 +0000

How about this:

$array = array(1,2,3,4,5);
foreach ($array as $a) {
//do something clever here
echo $a.”;
}