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

Database queries with bindings and Query Builder essentials in CodeIgniter 4

Database queries with bindings and Query Builder essentials in CodeIgniter 4

23 Jan 2022 01:25:58


Basics of fetching data from database using queries with bindings and Query Builder class in CodeIgniter 4


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Recent

Number of unique paths in square lattice

14 Feb 2020 21:45:36

Number of unique paths in square lattice

Suppose that you have a square (N x N) grid and want to determine number of unique paths, which will take you from the top left corner in the grid to the bottom right one of if. You are allowed to move by one point at at time, and to the right or to the bottom only. For example, ...

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Week day number falling on a month day

14 Feb 2020 01:51:58

Week day number falling on a month day

Suppose, that you were born on Monday, January 1, and want to know how many Mondays happened to fall on the same day of any month of the year over, lets say, the last 100 years. It is a silly problem, but also one which points to some problems and inaccuracies ensuing from ...

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Walking pyramid graph paths in PHP

12 Feb 2020 19:53:09

Walking pyramid graph paths in PHP

This article is a follow-up to my text about turning a pyramid like structure into a graph (which looks a lot like a tree, but isn't one), finding all the paths in the graph and collecting all the values held by vertices in each path of it. In the first article I stopped at ...

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Longest Collatz sequence in PHP

08 Feb 2020 23:30:22

Longest Collatz sequence in PHP

This article is a result of a fairly well known computer programming problem I came across online some time ago. Essence of the problem was about finding the longest Collatz sequence, that is the largest number of terms for a number less than N, with N being 1 000 000. For ...

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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.

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