S.Wojnowski - web development

Helping make the web work for everyone.

Welcome to my website. My name is Sylwester Wojnowski. I am a full stack web developer who started programming for the internet in 1998. As a web developer I plan, design and implement intereactive internet technologies and applications for individuals and organisations.

Web Developer Zone

Web Developer Zone is a code first section devoted to tools and techniques used in web development. Thematically, the main focus here is on PHP, Linux, BASH, JavaScript and a little bit of MySQL and Python.

Pick of the week

Dissecting e-mail spamming hack based on PHP CGI

Dissecting e-mail spamming hack based on PHP CGI

24 Jul 2020 18:27:44


Article about how vulnerable PHP CGI setups can become a source of e-mail spam.


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Recent

Arrangements with repetition implementation in PHP

08 Oct 2017 14:29:33

Arrangements with repetition implementation in PHP

This article, and in particular PHP code it contains, is an outcome of my lack of patience with regards to making arrangements with repetition of finite set items. Recently, while solving a Probability problem, which eventually led to an infinite series, I reached a step which ...

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Matrix transpose operator implementation in PHP

05 Oct 2017 21:49:26

Matrix transpose operator implementation in PHP

If you look for a computer programming challenge, you'll certainly find a few decent ones implementing concepts Linear Algebra deals with. One of simpler operations, at least on the paper, one carries out on the matrix is switching rows and columns indices along the main ...

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 Compound interest in PHP part 2

21 Sep 2017 12:43:34

Compound interest in PHP part 2

First article ( a link to it can be found at the end of this article ) in this series was all about developing libraries for compound interest calculation in PHP programming language. Now, it is time to employ those pieces of code to do what they have been built for. In this ...

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Compound interest in PHP part 1

20 Sep 2017 00:25:21

Compound interest in PHP part 1

In this article I look at how to write a reusable piece of code for finding compound interest and total accumulated value of deposit or loan in PHP programming language. Code developed here will become a basis to both a command line interface script and website form then. Since ...

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SWWW

S.Wojnowski - web developer

SWWW is my place on the web where I write on stuff related to web development. Main focus here is on my own programs and scripts, but also websites I have developed over years or helped develop, improve or maintain. In the Web Developer Zone I take a closer look at various solutions related to web development and computer programming.

If you find any of my projects interesting, useful or would like to know more on it, do let me know. This website has a contact form. Altenatively, you can leave a comment under an article on the blog.

Need a web developer?

S.Wojnowski - Hire a web developer

If you need a web developer for web development work drop me a line!

I am based in Wakefield, UK, but always happy to consider remote work opportunities.

Contact Me