A blog of my programming experience
I have just migrated my server hosting this blog from a VPS on Vultr to SSD Nodes (referral link) due to price advantage. There is a Black Friday sale happening today and I ordered a VPS with 8 cores, 32 GB RAM…
I have just moved to a different country with different time zone. In the past, my server and my blogs were all placed in my local time. Now they can be confusing as I can manage my server from different locations, and…
A few years ago, I wrote an article saying that Java has pointers. However, by typing Java pointer into Google, there are a lot of Stack Exchange questions shown on the top, some says Java does not have pointers, some says Java…
Today when I tried to open one of my websites https://longswims.net/ in order to update its contents, it stopped working throwing HTTP 500. I immediately signed in the web server and found out that the .php file was injected unknown code. I…
I have made a web app to show Citybus & NWFB combined ETA, which was released last month. It has two distinguishing features which bring convenience to users (including myself): It can show the first 3 upcoming departures for any combination of…
The government of Hong Kong has released public transport data set as GTFS. In response, I have built an OpenTripPlanner instance to work on those data as an experiment to have 100% open data public transport routing. The instance is currently accessible…
The type system in PHP has become safer each version since PHP 7.0, by using a strict type declaration on top of the PHP file. As a newly-developed feature, it doesn’t come with the billion-dollar mistake of allowing NULL for variables declared…
I started building my own website in 2008 when I was still in secondary school using PHP and (X)HTML. At that time, the PHP version was only 5.2, without modern features like namespaces, late static bindings, closures, type safety, etc. There was…
After my previous post about static members in various programming language, I decide to write a post about the word static in depth. static is a key word in multiple programming languages, with multiple distinct but related meanings. The history The static…
static keyword is used to represent class members, i.e. members which are shared among the class, as opposed of instance members which is unique to an object instance, in many programming languages, including PHP. However, the static functionality in PHP is much…
