Building a WordPress plugin from scratch, including extensible features

In this "live" video Mark writes a plugin from scratch to allow authors to add social profile links to their site and then output these as a widget in a widgetised area.

The plugin is also built using WordPress' extensible features, meaning other developers can build upon and modify it safely.

View the code used in the video here:

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[esraakgul]

very useful and everything is so clear. Thank you !

[ckarcher]

As I am watching this, I constantly wonder what the end result will look like. I think if you showed this at the start, it would be easier to follow your steps and comments. I am very new to plugin development, someone more experienced may find it easier to follow.

[adiyogi]

Hey, in every wp plugin creation video on YouTube I see that the wp data is available locally not on hosting provider. Can you please make a video of how set up things when data is stored on hosting provider? Thank you 🙏🏻

[theman]

I want to love this but theres just too much this and that in regards to the filter tree to keep up.

Will slowly go through the code in the description link hoping to make sense. Thanks for the effort btw :)

[RatherBeCancelledThanHandled]

Is Wordpress plugin accessible and viable for a individual developer to make money on ? How hard is getting initial traction ?

[EdwardCox]

Thank you Mark. Very helpful indeed as I am in the process of learning to develop a WordPress Plugin. Do you have an example doing the same sort of thing but not using Customise and Widgets? i.e. Plugin that takes a few values/input from Admin are and displays values/display on Public/front end? Keep up the excellent work. Edward

[TonyGirling]

Great job reinforcing the use of Filters for extensibility. What are your views on functions vs classes for plugin code?

[tg]

I'm looking for suggestions. I have a web app running on a Linux web server with aMySql db backend. Where can I find a real life example of a WP app that was created from an app like I have? It's a scheduling application for employees of a service company. I posted this on another video but thought this one was newly posted and be a better place for my question.

[amanahmed]

How does your LIST VIEW look.
Mine look like this:
Footer #1
Legacy Widget
Heading
Text
Footer #2
Group
Heading
Archives
Group
Heading
Categories
Inactive widgets

[charlesluck]

After 30 years of IBM COBOL, I'm a procedural, linear thinker, and it is how I solve problems. I don't fully understand the OOP approach; the code doesn't speak to me. But that is neither here nor there. This video assumes a level of knowledge concerning WordPress internals that I do not have, or maybe my familiarity with PHP is the problem, it made no difference. I can see the profile arrays, they look reasonably simple, but I do not know what you're talking about when you say "filters". I make my coffee through a filter. Filters can be thought of in terms of what they allow through, or in terms of what they don't allow through. What kind of filter is this? Besides, shouldn't these profiles be in a database?

[adsensedd]

I hate how you skipped over how add_filter actually works and then spent ages explaining the contents of your array. Skip the interesting part, focus on the mundane. But thanks for the effort.