News Feed
Sections




News Archive
feed this:

Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Matthew Weier O'Phinney:
Testing Code That Emits Output
August 25, 2014 @ 09:45:08

In this latest post to his site Matthew Weier O'Phinney gives his suggestion on how to test (unit test) code that provides some kind of direct output. In his case, his script is outputting header information directly, not as a part of a response string.

Here's the scenario: you have code that will emit headers and content, for instance, a front controller. How do you test this? The answer is remarkably simple, but non-obvious: namespaces.

He talks some about the use of namespaces in PHP classes (and methods, and constants...) and how things can be importing using them. He gives an example of an object that outputs some header and body information (an "Output" abstract class). He shows how to use the class in a simple test, calling "reset" in the setup and teardown methods and asserting the contents of the headers and body for expected content.

0 comments voice your opinion now!
test unittest code phpunit output direct namespace tutorial

Link: http://mwop.net/blog/2014-08-11-testing-output-generating-code.html

PHPMaster.com:
Understanding Recursion
June 06, 2013 @ 09:32:41

On PHPMaster.com today there's a new tutorial posted that talks about something that can be a more difficult concept for budding developers to grasp - recursion.

In one of my previous articles I wrote about iterators and how you can use them. Today I'd like to look at the fraternal twin of iteration: recursion. A recursive function is one that calls itself, either directly or in a cycle of function calls. Recursion can also refer to a method of problem solving that first solves a smaller version of the problem and then uses that result plus some other computation to formulate an answer to the original problem.

He starts with an example - one function showing how to calculate a factorial using just looping and the other by having the function call itself. He talks some about the different types of recursion (direct/indirect) and gives a more practical example, a "find in array" function for one with nested subarrays. He also briefly mentions "head" and "tail" recursion, the difference being if it waits for a return value or not. He also offers some general advice when it comes to using recursion and how you have to watch for optimization issues.

0 comments voice your opinion now!
recursion tutorial introduction head tail direct indirect

Link: http://phpmaster.com/understanding-recursion


Community Events





Don't see your event here?
Let us know!


tool version series composer opinion security community artisanfiles list conference laravel introduction voicesoftheelephpant symfony interview language podcast release library framework

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework