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
Using arrow functions for recursive post-order tree traversal
24 Jul 2020 00:31:31
Using JavaScript arrow functions for post-order based tree data structure traversal.
Popular
03 Aug 2020 00:39:31
Piping JSON object to PHP script
Article about how to pass data from a shell to a PHP script with a pipe on the command line or directly using PHP system function.
29 Jul 2023 17:05:58
Fixing No input file specified error in CodeIgniter 4
Get rid of No input file specified error in CodeIgniter 4.
18 Jul 2020 00:39:07
Transforming range of variable to 0 to 1 and custom ranges
Learn how to transform variable's range to [0,1] or a custom range.
20 May 2021 17:49:23
Mapping associative array keys to variables with $$ in PHP
A neat trick to reduce amount of code needed to access data stored in PHP associative array.
07 Apr 2022 00:55:48
MongoDB mongod server fails to start after installation and solution
MongoDB server not starting after installation due to missing dependencies and how to solve this problem.
24 May 2024 11:51:01
There is no data to update error in CodeIgniter 4
Finding a solution to There is no data to update error in CodeIgniter 4.
Recent
28 Jan 2022 12:34:11
Building a module for CodeIgniter 4
Once you are somewhat familiar with basics of CodeIgniter 4 and the MVC pattern it uses, it is time to move on to building modules for the framework. Modules are chunks of functionality you write once and reuse in your current and subsequent projects. Depending on your needs you ...
27 Jan 2022 12:25:32
Creating URL-safe slugs in CodeIgniter 4
Today it is very desirable to be able to create user (and search engine) friendly URLs. One big step towards achieving this is knowing how to build slugs. A slugs is a special string, which is suitable for including in an URL. For example a slug has no spaces in it. They all are ...
23 Jan 2022 01:25:58
Database queries with bindings and Query Builder essentials in CodeIgniter 4
CodeIgniter 4 offers a good range of tools for fetching data from database. There are simple queries, queries with bindings and a very good Query Builder class. I do not use simple queries, so leave them aside, and focus on the later two. A couple of (almost) self-explanatory ...
22 Jan 2022 19:08:58
Selecting items created within the current month in MySQL
Here is a quick query, which helps to find all the items added to a MySQL database table in the current month. Suppose today is January 18, 2022, and you want to get all the blog posts stored in Posts table, which were created within the last 18 days. Assuming that the table ...
SWWW
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.
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I am based in Wakefield, UK, but always happy to consider remote work opportunities.